Herbert Walther

Optimal taxation of gambling and lotto (2005)

Walther, Herbert

Bets are analyzed using an intertemporal, state dependent expected utility model with non-linear probability weighting. Gamblers face a tradeoff between long-run expected utility from wealth and the...

Optimal taxation of gambling and lotto (2005)

Walther, Herbert

Bets are analyzed using an intertemporal, state dependent expected utility model with non-linear probability weighting. Gamblers face a tradeoff between long-run expected utility from wealth and the...

Competitive conspicuous consumption, household saving and income inequality (2004)

Walther, Herbert

An intertemporal decision model is presented in which subjects save less for retirement than the permanent income hypothesis predicts, signaling optimistic income prospects (and therefore high latent...

Competitive conspicuous consumption, household saving and income inequality (2004)

Walther, Herbert

An intertemporal decision model is presented in which subjects save less for retirement than the permanent income hypothesis predicts, signaling optimistic income prospects (and therefore high latent...

Ring dark solitary waves: Experiment versus theory (2002)

Dreischuh,Alexander, Neshev,D., Paulus,Gerhard Georg, Grasbon,Felix, Walther,Herbert

Experimental results on optical ring dark solitary wave dynamics are presented, emphasizing the interplay between initial dark beam contrast, total phase shift, background-beam intensity, and...

Spontaneous emission of an atom in front of a mirror (2002)

Beige,Almut, Pachos,Jiannis, Walther,Herbert

Motivated by a recent experiment [J. Eschner et al., Nature,(London) 413, 495 (2001)]; we now present a theoretical study on the fluorescence of an atom in front of a mirror. On the assumption that...

Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent control fields without spontaneous emission (2002)

Scully,Marlan O., Aharonov,Yakir, Kapale,Kishore T., Tannor,David J., Süssmann,Georg., Walther,Herbert

Cooling of internal atomic and molecular states via optical pumping and laser cooling of the atomic velocity distribution, rely on spontaneous emission. The outstanding success of such examples,...

Dispersion Control in a 100-kHz-Repetition-Rate 35-fs Ti: Sapphire Regenerative Amplifier System (2002)

Lindner,Fabrizio, Paulus,Gerhard Georg, Grasbon,Felix, Dreischuh,Alexander, Walther,Herbert

This paper presents a 100-kHz femtosecond amplifier system delivering pulses with a duration of 35 fs and an energy of 7 μJ. The system does not include a stretcher, since the large amount of...

Quantum computation with trapped ions in an optical cavity (2002)

Pachos,Jiannis, Walther,Herbert

Two-qubit logical gates are proposed on the basis of two atoms trapped in a cavity setup and commonly addressed by laser fields. Losses in the interaction by spontaneous transitions are efficiently...

One-atom maser: Non-separable atom pairs (2002)

Englert, Berthold-Georg, Lougovski, Pavel, Solano, Enrique, Walther, Herbert

When a one-atom maser is operated in the standard way -- excited, resonant two-level atoms traverse the resonator at random times -- the emerging atoms are entangled with the cavity field. As a...

Reversing the Jaynes-Cummings dynamics to measure decoherence (2002)

Morigi,Giovanna, Solano,Enrique, Englert,Bertolg-Georg, Walther,Herbert

We show that the Jaynes-Cummings dynamics can be undone by a Suitable manipulation of the two-level system-more specifically, by a quasi-instantaneous phase change. We discuss this effect in relation...

Spontaneous emission of an atom in front of a mirror (2002)

Beige, Almut, Pachos, Jiannis, Walther, Herbert

Motivated by a recent experiment [J. Eschner {\it et al.}, Nature {\bf 413}, 495 (2001)], we now present a theoretical study on the fluorescence of an atom in front of a mirror. On the assumption...

Measuring irreversible dynamics of a quantum harmonic oscillator (2002)

Morigi,Giovanna, Solano,Enrique, Englert,Berthold-Georg, Walther,Herbert

We show that the unitary evolution of a harmonic oscillator coupled to a two-level system can be undone by a suitable manipulation of the two-level system-more specifically, by a quasi-instantaneous...

Generation of lattice structures of optical vortices (2002)

Dreischuh,Alexander, Chervenkov,Sotir, Neshev,Dragomir, Paulus,Gerhard G., Walther,Herbert

We demonstrate experimentally the generation of square and hexagonal lattices of optical vortices and reveal their propagation in a saturable nonlinear medium. If the topological charges of the...

Auf Feynmans Quantenpfaden: Atome im intensiven Laserfeld (2002)

Paulus,Gerhard G., Grasbon,Felix, Walther,Herbert, Kopold,Richard, Becker,Wilhelm

Heute kann man Laserpulse erzeugen, deren Feldstärken diejenigen übertreffen, welche die Atome zusammen halten. In den letzten Jahren gelangen mithilfe des Feynmanschen Pfadintegrals große...

Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent control fields without spontaneous emission (2002)

Scully, Marlan O., Aharonov, Yakir, Kapale, Kishore T., Tannor, David J., Süssmann, Georg., Walther, Herbert

Cooling of internal atomic and molecular states via optical pumping and laser cooling of the atomic velocity distribution, rely on spontaneous emission. The outstanding success of such examples,...

Generation of lattice structures of optical vortices (2002)

Dreischuh, Alexander, Chervenkov, Sotir, Neshev, Dragomir, Paulus, Gerhard G., Walther, Herbert

We demonstrate experimentally the generation of square and hexagonal lattices of optical vortices and reveal their propagation in a saturable nonlinear medium. If the topological charges of the...

Measuring irreversible dynamics of a quantum harmonic oscillator (2002)

Morigi, Giovanna, Solano, Enrique, Englert, Berthold-Georg, Walther, Herbert

We show that the unitary evolution of a harmonic oscillator coupled to a two-level system can be undone by a suitable manipulation of the two-level system-more specifically, by a quasi-instantaneous...

Reversing the Jaynes-Cummings dynamics to measure decoherence (2002)

Morigi, Giovanna, Solano, Enrique, Englert, Bertolg-Georg, Walther, Herbert

We show that the Jaynes-Cummings dynamics can be undone by a Suitable manipulation of the two-level system-more specifically, by a quasi-instantaneous phase change. We discuss this effect in relation...

Generation and detection of Fock states of the radiation field (2002)

Walther, Herbert

Recent widely discussed applications in quantum information and quantum cryptography require radiation sources able to produce a fixed number of photons. In this paper we review the work performed in...

Ring dark solitary waves: Experiment versus theory (2002)

Dreischuh, Alexander, Neshev, D., Paulus, Gerhard Georg, Grasbon, Felix, Walther, Herbert

Experimental results on optical ring dark solitary wave dynamics are presented, emphasizing the interplay between initial dark beam contrast, total phase shift, background-beam intensity, and...

Dispersion Control in a 100-kHz-Repetition-Rate 35-fs Ti: Sapphire Regenerative Amplifier System (2002)

Lindner, Fabrizio, Paulus, Gerhard Georg, Grasbon, Felix, Dreischuh, Alexander, Walther, Herbert

This paper presents a 100-kHz femtosecond amplifier system delivering pulses with a duration of 35 fs and an energy of 7 μJ. The system does not include a stretcher, since the large amount of...

Auf Feynmans Quantenpfaden: Atome im intensiven Laserfeld (2002)

Paulus, Gerhard G., Grasbon, Felix, Walther, Herbert, Kopold, Richard, Becker, Wilhelm

Heute kann man Laserpulse erzeugen, deren Feldstärken diejenigen übertreffen, welche die Atome zusammen halten. In den letzten Jahren gelangen mithilfe des Feynmanschen Pfadintegrals große...

Quantum computation with trapped ions in an optical cavity (2002)

Pachos, Jiannis, Walther, Herbert

Two-qubit logical gates are proposed on the basis of two atoms trapped in a cavity setup and commonly addressed by laser fields. Losses in the interaction by spontaneous transitions are efficiently...

Spontaneous emission of an atom in front of a mirror (2002)

Beige, Almut, Pachos, Jiannis, Walther, Herbert

Motivated by a recent experiment [J. Eschner et al., Nature,(London) 413, 495 (2001)]; we now present a theoretical study on the fluorescence of an atom in front of a mirror. On the assumption that...

MARLAN O. SCULLY{{*, YAKIR AHARONOV{}}, (2002)

Kishore T. Kapale, David J. Tannorjj, Georg Su Ssmann, Herbert Walther

journal of modern optics, 2002, vol. 49, no. 14/15, 2297–2307 Sharpening accepted thermodynamic wisdom via quantum control: or cooling to an internal temperature of zero by external coherent...

Quantum computation with trapped ions in an optical cavity (2001)

Pachos, Jiannis, Walther, Herbert

Two-qubit logical gates are proposed on the basis of two atoms trapped in a cavity setup. Losses in the interaction by spontaneous transitions are efficiently suppressed by employing adiabatic...

Generation of lattice structures of optical vortices (2001)

Dreischuh, Alexander, Chervenkov, Sotir, Neshev, Dragomir, Paulus, Gerhard G., Walther, Herbert

We demonstrate experimentally the generation of square and hexagonal lattices of optical vortices and reveal their propagation in a saturable nonlinear medium. If the topological charges of the...

Measuring irreversible dynamics of a quantum harmonic oscillator (2001)

Morigi, Giovanna, Solano, Enrique, Englert, Berthold-Georg, Walther, Herbert

We show that the unitary evolution of a harmonic oscillator coupled to a two-level system can be undone by a suitable manipulation of the two-level system -- more specifically: by a...

Das Atom in der Falle- eiene neue Uhr / (2000)

Walther, Herbert.

Thesis (doctoral)--Westfälische Wilhelms-Universität Münster, 2000.

On mechanisms that enforce complementarity (1999)

Englert, Berthold-Georg, Scully, Marlan O., Walther, Herbert

In a recent publication Luis and Sanchez-Soto arrive at the conclusion that complementarity is universally enforced by random classical phase kicks. We disagree. One could just as well argue that...

Ökonomische Funktionen der österreichischen Abfertigungsregelung - im Lichte von Theorie und Empirie (1999)

Walther, Herbert

Die folgende Arbeit verfolgt - vor dem Hintergrund der wieder auflebenden Reformdebatte rund um die österreichische Abfertigungsregelung - drei Ziele: (1) Es soll ein knapper, analytisch fundierter...

Ökonomische Funktionen der österreichischen Abfertigungsregelung - im Lichte von Theorie und Empirie (1999)

Walther, Herbert

Die folgende Arbeit verfolgt - vor dem Hintergrund der wieder auflebenden Reformdebatte rund um die österreichische Abfertigungsregelung - drei Ziele: (1) Es soll ein knapper, analytisch fundierter...

(Das Kernquadrupolmoment des Mn55). (1962)

Walther, Herbert.

Heidelberg, Naturwiss.-math. F., Diss. v. 6. Juni 1962 (Nicht f. d. Aust.).

Competition and Monopoly in the Market for Pari-Mutuel Bets — A Theoretical Approach

Herbert Walther

An intertemporal state dependent expected utility model (generating S-shaped probability weighting by incorporating anticipated flows of utility from elation and disappointment) is used as a...