P. Chomaz

Publication List Details

Period

1983 - 2007

Number

427

Co-Authors

Phase Transitions in Finite Systems using Information Theory (2007)

Chomaz, P., Gulminelli, F.

(abridged) In this paper, we present the issues we consider as essential as far as the statistical mechanics of finite systems is concerned. In particular, we emphasis our present understanding of...

Nuclear break-up of $^{11}$Be (2007)

Lima, V., Scarpaci, J.A., Lacroix, D., Blumenfeld, Y., Bourgeois, C., Chabot, M., ...

The break-up of $^{11}$Be was studied at 41 AMeV using a secondary beam of 11Be from the GANIL facility on a $^{48}$Ti target by measuring correlations between the $^{10}$Be core, the emitted...

Nuclear break-up of $^{11}$Be (2007)

Lima, V., Scarpaci, J.A., Lacroix, D., Blumenfeld, Y., Bourgeois, C., Chabot, M., ...

The break-up of $^{11}$Be was studied at 41 AMeV using a secondary beam of 11Be from the GANIL facility on a $^{48}$Ti target by measuring correlations between the $^{10}$Be core, the emitted...

Nuclear break-up of $^{11}$Be (2007)

Lima, V., Scarpaci, J.A., Lacroix, D., Blumenfeld, Y., Bourgeois, C., Chabot, M., ...

The break-up of $^{11}$Be was studied at 41 AMeV using a secondary beam of 11Be from the GANIL facility on a $^{48}$Ti target by measuring correlations between the $^{10}$Be core, the emitted...

Low density expansion and isospin dependence of nuclear energy functional: comparison between relativistic and Skyrme models (2007)

Providencia, C., Menezes, D. P., Brito, L., Chomaz, P.

In the present work we take the non relativistic limit of relativistic models and compare the obtained functionals with the usual Skyrme parametrization. Relativistic models with both constant...

Anomalous thermodynamics and phase transitions of neutron-star matter (2007)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Ising analogue to compact-star matter (2007)

Napolitani, P., Chomaz, P., Gulminelli, F., Hasnaoui, K.H.O.

By constructing an Ising analogue of compact-star matter at sub-saturation density we explored the effect of Coulomb frustration on the nuclear liquid-gas phase transition. Our conclusions is...

Information theory of open fragmenting systems (2007)

Gulminelli, F., Chomaz, P., Juillet, O., Ison, M., Dorso, C.

An information theory description of finite systems explicitly evolving in time is presented. We impose a MaxEnt variational principle on the Shannon entropy at a given time while the constraints are...

Thermodynamics of compact-star matter within an ising approach (2007)

Chomaz, P., Ducoin, C., Gulminelli, F., Hasnaoui, K.H.O., Napolitani, P.

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of...

From multifragmentation to supernovae and neutron stars (2007)

Gulminelli, F., Chomaz, P., Ducoin, C., Napolitani, P., Hasnaoui, K.

The thermodynamics properties of globally neutral dense stellar matter are analyzed both in terms of mean field instabilities and structures beyond the mean field. The mean field response to finite...

Anomalous thermodynamics and phase transitions of neutron-star matter (2007)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Phase Transitions in Finite Systems using Information Theory (2007)

Chomaz, P., Gulminelli, F.

(abridged) In this paper, we present the issues we consider as essential as far as the statistical mechanics of finite systems is concerned. In particular, we emphasis our present understanding of...

Phase Transitions in Finite Systems using Information Theory (2007)

Chomaz, P., Gulminelli, F.

(abridged) In this paper, we present the issues we consider as essential as far as the statistical mechanics of finite systems is concerned. In particular, we emphasis our present understanding of...

From multifragmentation to supernovae and neutron stars (2007)

Gulminelli, F., Chomaz, P., Ducoin, C., Napolitani, P., Hasnaoui, K.

The thermodynamics properties of globally neutral dense stellar matter are analyzed both in terms of mean field instabilities and structures beyond the mean field. The mean field response to finite...

Anomalous thermodynamics and phase transitions of neutron-star matter (2007)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Thermodynamics of compact-star matter within an ising approach (2007)

Chomaz, P., Ducoin, C., Gulminelli, F., Hasnaoui, K.H.O., Napolitani, P.

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of...

Phase Transitions in Finite Systems using Information Theory (2007)

Chomaz, P., Gulminelli, F.

(abridged) In this paper, we present the issues we consider as essential as far as the statistical mechanics of finite systems is concerned. In particular, we emphasis our present understanding of...

From multifragmentation to supernovae and neutron stars (2007)

Gulminelli, F., Chomaz, P., Ducoin, C., Napolitani, P., Hasnaoui, K.

The thermodynamics properties of globally neutral dense stellar matter are analyzed both in terms of mean field instabilities and structures beyond the mean field. The mean field response to finite...

Anomalous thermodynamics and phase transitions of neutron-star matter (2007)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Thermodynamics of compact-star matter within an ising approach (2007)

Chomaz, P., Ducoin, C., Gulminelli, F., Hasnaoui, K.H.O., Napolitani, P.

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of...

Thermodynamics of compact-star matter within an ising approach (2006)

Chomaz, P., Ducoin, C., Gulminelli, F., Hasnaoui, K. H. O., Napolitani, P.

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of...

Effect of electronic environment on neutrino-nucleus reactions at r-process sites (2006)

Minato, F., Hagino, K., Takigawa, N., Balantekin, A. B., Chomaz, P.

We discuss effects of the electron plasma on charged-current neutrino-nucleus reaction, $(\nu_e,e^-)$ in a core-collapse supernova environment. We first discuss the electron screening effect on the...

Correlations in mesoscopic magnetic systems (2006)

Gulminelli, F., Chomaz, P.

The purpose of this proposal is to study the ferro/para phase transition in a mesoscopic Ising-like lattice and in particular demonstrate the existence of a negative magnetic susceptibility in the...

Comment on "Partial energies fluctuations and negative heat capacities" by X. Campi et al (2006)

Chomaz, P., Gulminelli, F., D'Agostino, M.

Studying the energy partioning published in Nucl-th/0406056v2 we show that the presented results do not fulfill the sum rule due to energy conservation. The observed fluctuations of the energy...

Comment on "Negative heat capacities and first order phase transitions in nuclei" (2006)

Gulminelli, F., Chomaz, P.

In a recent paper Moretto et al. [ Phys. Rev. C 66, 041601 (2002) ] claim that the negative heat capacities presented in our previously published paper [ Chomaz, Duflot, and Gulminelli, Phys. Rev....

Chemical and mechanical spinodals a unique liquid-gas instability (2006)

Chomaz, P., Margueron, J.

We demonstrate that the instabilities of asymmetric nuclear matter at sub-saturation densities do not present two types of instabilities as usually discussed but a unique one. The associated order...

The nuclear liquid gas phase transition and phase coexistence: a review (2006)

Chomaz, P.

In this talk we will review the different signals of liquid gas phase transition in nuclei. From the theoretical side we will first discuss the foundations of the concept of equilibrium, phase...

On the inequivalence of statistical ensembles (2006)

Gulminelli, F., Chomaz, P.

We investigate the relation between various statistical ensembles of finite systems. If ensembles differ at the level of fluctuations of the order parameter, we show that the equations of states can...

Collective response of nuclei: comparison between experiments and extended mean-field calculations (2006)

Lacroix, D., Ayik, S., Chomaz, P.

The giant monopole, dipole and quadrupole responses in $^{40}$Ca, $^{90}$Zr, $^{120}$Sn and $^{208}$Pb are investigated using linear response treatment based on a stochastic one-body transport...

Analysis of Boltzmann-Langevin dynamics in nuclear matter (2006)

Ayik, S., Chomaz, P., Colonna, M., Randrup, J.

The Boltzmann-Langevin dynamics of harmonic modes in nuclear matter is analyzed within linear-response theory, both with an elementary treatment and by utilizing the frequency-dependent response...

Collective modes in relativistic npe matter at finite temperature (2006)

Brito, L., Providencia, C., M. Santos, A., S. Avancini, S., P. Menezes, D., Chomaz, P.

Isospin and density waves in neutral neutron-proton-electron (npe) matter are studied within a relativistic mean-field hadron model at finite temperature with the inclusion of the electromagnetic...

Evidence for Spinodal Decomposition in Nuclear Multifragmentation (2006)

Borderie, B., Tabacaru, G., Chomaz, P., Colonna, M., Guarnera, A., Parlog, M., ...

Multifragmentation of a ``fused system\'\' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high...

Introducion to Nuclear Physics: course (2006)

Chomaz, P

Atomic nuclei are made of nucleons, protons and neutrons, composed by quarks strongly interacting via gluons. How such complex objects as particles and nuclei are built? remains a fundamental...

Topology of event distributions as a generalized definition of phase transitions in finite systems (2006)

Chomaz, P., Gulminelli, F., Duflot, V.

We propose a definition of phase transitions in finite systems based on topology anomalies of the event distribution in the space of observations. This generalizes all the definitions based on the...

From multifragmentation to supernovae and neutron stars (2006)

Gulminelli, F., Chomaz, P., Ducoin, C., Napolitani, P., Hasnaoui, K.

The thermodynamics properties of globally neutral dense stellar matter are analyzed both in terms of mean field instabilities and structures beyond the mean field. The mean field response to finite...

Boson expansion methods applied to a two-level model in the study of multiple giant resonances (2006)

Volpe, C., Chomaz, P., Andres, M.V., Catara, F., Lanza, E.G.

We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in analogy with previous microscopic calculations. We study the effects of...

Tracking energy fluctuations from fragment partitions in the lattice gas model (2006)

Gulminelli, F., Chomaz, P., D'Agostino, M.

Partial energy fluctuations are known tools to reconstruct microcanonical heat capacities. For experimental applications, approximations have been developed to infer fluctuations at freeze-out from...

Low-density instabilities in relativistic asymmetric matter of compact stars (2006)

Providencia, C., Brito, L., S. Avancini, S., P. Menezes, D., Chomaz, P.

Dynamical instability modes of low-density asymmetric nuclear matter (ANM) neutralized by electrons as found in supernova core and neutron star crust are studied in the framework of relativistic...

Low-density instabilities in relativistic asymmetric matter of compact stars (2006)

Providencia, C., Brito, L., S. Avancini, S., P. Menezes, D., Chomaz, P.

Dynamical instability modes of low-density asymmetric nuclear matter (ANM) neutralized by electrons as found in supernova core and neutron star crust are studied in the framework of relativistic...

Collective modes in relativistic npe matter at finite temperature (2006)

Brito, L., Providencia, C., M. Santos, A., S. Avancini, S., P. Menezes, D., Chomaz, P.

Isospin and density waves in neutral neutron-proton-electron (npe) matter are studied within a relativistic mean-field hadron model at finite temperature with the inclusion of the electromagnetic...

Effect of electronic environment on neutrino-nucleus reactions at r-process sites (2006)

Minato, F., Hagino, K., Takigawa, N., Balantekin, A. B., Chomaz, P.

We discuss effects of the electron plasma on charged-current neutrino-nucleus reaction, $(\nu_e,e^-)$ in a core-collapse supernova environment. We first discuss the electron screening effect on the...

Ising analogue to compact-star matter (2006)

Napolitani, P., Chomaz, P., Gulminelli, F., Hasnaoui, K.H.O.

By constructing an Ising analogue of compact-star matter at sub-saturation density we explored the effect of Coulomb frustration on the nuclear liquid-gas phase transition. Our conclusions is...

Thermodynamics of compact-star matter within an ising approach (2006)

Chomaz, P., Ducoin, C., Gulminelli, F., Hasnaoui, K.H.O., Napolitani, P.

In the formation and evolution of compact stars, nuclear matter explores high thermal excursions and is the site of intense neutrino emission. Neutrino transport as well as structural properties of...

Role of isospin in the nuclear liquid-gas phase transition (2006)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Role of isospin in the nuclear liquid-gas phase transition (2006)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Role of isospin in the nuclear liquid-gas phase transition (2006)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations (2005)

Simenel, C., Chomaz, P., Duguet, T.

We show that isospin non-diagonal terms should appear in the mean field Hamiltonian when neutron-proton symmetry is broken. They give rise to charge mixing in the single-particle wave-functions. We...

Role of isospin in the nuclear liquid-gas phase transition (2005)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Anomalous thermodynamics and phase transitions of neutron-star matter (2005)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K. H. O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Role of isospin in the nuclear liquid-gas phase transition (2005)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Tracking energy fluctuations from fragment partitions in the lattice gas model (2005)

Gulminelli, F., Chomaz, P., D'Agostino, M.

Partial energy fluctuations are known tools to reconstruct microcanonical heat capacities. For experimental applications, approximations have been developed to infer fluctuations at freeze-out from...

Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations (2005)

Simenel, C., Chomaz, P., Duguet, T.

We show that isospin non-diagonal terms should appear in the mean field Hamiltonian when neutron-proton symmetry is broken. They give rise to charge mixing in the single-particle wave-functions. We...

Information theory of open fragmenting systems (2005)

Gulminelli, F., Chomaz, P., Juillet, O., Ison, M., Dorso, C.

An information theory description of finite systems explicitly evolving in time is presented. We impose a MaxEnt variational principle on the Shannon entropy at a given time while the constraints are...

Super-Symmetry transformation for excitation processes (2005)

Margueron, J., Chomaz, P.

Quantum Mechanics SUper-SYmmetry (QM-SUSY) provides a general framework forstudies using phenomenological potentials for nucleons (or clusters) interacting with a core. The SUSY potentials result...

Anomalous thermodynamics and phase transitions of neutron-star matter (2005)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Distribution of the largest fragment in the Lattice Gas Model (2005)

Gulminelli, F., Chomaz, P.

The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the...

Generalized Gibbs ensembles for time dependent processes (2005)

Chomaz, P., Gulminelli, F., Juillet, O.

An information theory description of finite systems explicitly evolving in time is presented for classical as well as quantum mechanics. We impose a variational principle on the Shannon entropy at a...

Role of isospin in the nuclear liquid-gas phase transition (2005)

Ducoin, C., Chomaz, P., Gulminelli, F.

We study the thermodynamics of asymmetric nuclear matter using a mean field approximation with a Skyrme effective interaction, in order to establish its phase diagram and more particularly the...

Tracking energy fluctuations from fragment partitions in the lattice gas model (2005)

Gulminelli, F., Chomaz, P., D'Agostino, M.

Partial energy fluctuations are known tools to reconstruct microcanonical heat capacities. For experimental applications, approximations have been developed to infer fluctuations at freeze-out from...

Isospin coupling in time-dependent-mean-field theories and decay of isovector excitations (2005)

Simenel, C., Chomaz, P., Duguet, T.

We show that isospin non-diagonal terms should appear in the mean field Hamiltonian when neutron-proton symmetry is broken. They give rise to charge mixing in the single-particle wave-functions. We...

Information theory of open fragmenting systems (2005)

Gulminelli, F., Chomaz, P., Juillet, O., Ison, M., Dorso, C.

An information theory description of finite systems explicitly evolving in time is presented. We impose a MaxEnt variational principle on the Shannon entropy at a given time while the constraints are...

Super-Symmetry transformation for excitation processes (2005)

Margueron, J., Chomaz, P.

Quantum Mechanics SUper-SYmmetry (QM-SUSY) provides a general framework forstudies using phenomenological potentials for nucleons (or clusters) interacting with a core. The SUSY potentials result...

Anomalous thermodynamics and phase transitions of neutron-star matter (2005)

Chomaz, P., Gulminelli, F., Ducoin, C., Napolitani, P., Hasnaoui, K.H.O.

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a...

Distribution of the largest fragment in the Lattice Gas Model (2005)

Gulminelli, F., Chomaz, P.

The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the...

Generalized Gibbs ensembles for time dependent processes (2005)

Chomaz, P., Gulminelli, F., Juillet, O.

An information theory description of finite systems explicitly evolving in time is presented for classical as well as quantum mechanics. We impose a variational principle on the Shannon entropy at a...

From multifragmentation to supernovae and neutron stars (2005)

Gulminelli, F., Chomaz, P., Ducoin, C., Napolitani, P., Hasnaoui, K.

The thermodynamics properties of globally neutral dense stellar matter are analyzed both in terms of mean field instabilities and structures beyond the mean field. The mean field response to finite...

Distribution of the largest fragment in the Lattice Gas Model (2005)

Gulminelli, F., Chomaz, P.

The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the...

Generalized Gibbs ensembles for time dependent processes (2005)

Chomaz, P., Gulminelli, F., Juillet, O.

An information theory description of finite systems explicitly evolving in time is presented for classical as well as quantum mechanics. We impose a variational principle on the Shannon entropy at a...

Generalized Gibbs ensembles for time dependent processes (2005)

Chomaz, P., Gulminelli, F., Juillet, O.

An information theory description of finite systems explicitly evolving in time is presented for classical as well as quantum mechanics. We impose a variational principle on the Shannon entropy at a...

Distribution of the largest fragment in the Lattice Gas Model (2005)

Gulminelli, F., Chomaz, P.

The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the...

Generalized Gibbs ensembles for time dependent processes (2005)

Chomaz, P., Gulminelli, F., Juillet, O.

An information theory description of finite systems explicitly evolving in time is presented for classical as well as quantum mechanics. We impose a variational principle on the Shannon entropy at a...

Distribution of the largest fragment in the Lattice Gas Model (2005)

Gulminelli, F., Chomaz, P.

The distribution of the largest fragment is studied in different regions of the Lattice Gas model phase diagram. We show that first and second order transitions can be clearly distinguished in the...

Comment on "Negative heat capacities and first order phase transitions in nuclei" (2004)

Gulminelli, F., Chomaz, P.

In a recent paper Moretto et al. [ Phys. Rev. C 66, 041601 (2002) ] claim that the negative heat capacities presented in our previously published paper [ Chomaz, Duflot, and Gulminelli, Phys. Rev....

Comment on "Negative heat capacities and first order phase transitions in nuclei" (2004)

Gulminelli, F., Chomaz, P.

In a recent paper Moretto et al. [ Phys. Rev. C 66, 041601 (2002) ] claim that the negative heat capacities presented in our previously published paper [ Chomaz, Duflot, and Gulminelli, Phys. Rev....

Comment on "Partial energies fluctuations and negative heat capacities" by X. Campi et al (2004)

Chomaz, P., Gulminelli, F., D'Agostino, M.

Studying the energy partioning published in Nucl-th/0406056v2 we show that the presented results do not fulfill the sum rule due to energy conservation. The observed fluctuations of the energy...

Correlations in mesoscopic magnetic systems (2004)

Gulminelli, F., Chomaz, P.

The purpose of this proposal is to study the ferro/para phase transition in a mesoscopic Ising-like lattice and in particular demonstrate the existence of a negative magnetic susceptibility in the...

Spinodal in asymmetric nuclear matter (2003)

Margueron, J., Chomaz, P.

The phase diagram of nuclear matter is quite rich - it shows such phenomena as phase-transitions, formation of condensates, clustering, etc. From the analysis of the spinodal instability, one can...

Spinodal in asymmetric nuclear matter (2003)

Margueron, J., Chomaz, P.

The phase diagram of nuclear matter is quite rich - it shows such phenomena as phase-transitions, formation of condensates, clustering, etc. From the analysis of the spinodal instability, one can...

Chemical and mechanical spinodals a unique liquid-gas instability (2003)

Chomaz, P., Margueron, J.

We demonstrate that the instabilities of asymmetric nuclear matter at sub-saturation densities do not present two types of instabilities as usually discussed but a unique one. The associated order...

A unique spinodal region in asymmetric nuclear matter (2002)

Margueron, J., Chomaz, P.

Asymmetric nuclear matter at sub-saturation densities is shown to present only one type of instabilities. The associated order parameter is dominated by the isoscalar density and so the transition is...

Experimental evidence for spinodal decomposition in multifragmentation of heavy systems (2001)

Tabacaru, INDRA Collaboration: G., Borderie, B., Rivet, M. F., Chomaz, P., Colonna, M., Frankland, J. D., ...

Multifragmentation of fused systems was observed for central collisions between 32 AMeV 129Xe and Sn, and 36 AMeV 155Gd and U. Previous extensive comparisons between the two systems led to the...

On the inequivalence of statistical ensembles (2001)

Gulminelli, F., Chomaz, P.

We investigate the relation between various statistical ensembles of finite systems. If ensembles differ at the level of fluctuations of the order parameter, we show that the equations of states can...

Evidence for Spinodal Decomposition in Nuclear Multifragmentation (2001)

Borderie, B., Tabacaru, G., Chomaz, P., Colonna, M., Guarnera, A., Parlog, M., ...

Multifragmentation of a ``fused system\'\' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high...

Boson expansion methods applied to a two-level model in the study of multiple giant resonances (1999)

Volpe, C., Chomaz, P., Andres, M.V., Catara, F., Lanza, E.G.

We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in analogy with previous microscopic calculations. We study the effects of...

Boson expansion methods applied to a two-level model in the study of multiple giant resonances (1999)

Volpe, C., Chomaz, P., Andres, M.V., Catara, F., Lanza, E.G.

We apply boson expansion methods to an extended exactly solvable Lipkin-Meshkov-Glick model including anharmonicities in analogy with previous microscopic calculations. We study the effects of...

Expansion and evaporation of hot nuclei: comparison between semi-classical and quantal mean-field approaches (1998)

Lacroix, D, Chomaz, P

We present a general discussion of the mean field dynamics of finite nuclei prepared under extreme conditions of temperature and pressure. We compare the prediction of semi-classical approximation...

Analysis of Boltzmann-Langevin dynamics in nuclear matter (1996)

Ayik, S., Chomaz, P., Colonna, M., Randrup, J.

The Boltzmann-Langevin dynamics of harmonic modes in nuclear matter is analyzed within linear-response theory, both with an elementary treatment and by utilizing the frequency-dependent response...