Supercurrent Survival under a Rosen-Zener Quench of Hard-Core Bosons (2007)
Klich, I., Lannert, C., Refael, G.
We study the survival of supercurrents in a system of impenetrable bosons on a lattice, subject to a quantum quench from its critical superfluid phase to an insulating phase. We show that the...
Supercurrent survival under Rosen-Zener quench of hard core bosons (2007)
Klich, I., Lannert, C., Refael, G.
We study the survival of super-currents in a system of impenetrable bosons subject to a quantum quench from its critical superfluid phase to an insulating phase. We show that the evolution of the...
Coexistence of superfluid and Mott phases of lattice bosons (2006)
Barankov, R. A., Lannert, C., Vishveshwara, S.
Recent experiments on strongly-interacting bosons in optical lattices have revealed the co-existence of spatially-separated Mott-insulating and number-fluctuating phases. The description of this...
The dynamics of condensate shells: collective modes and expansion (2006)
We explore the physics of three-dimensional shell-shaped condensates, relevant to cold atoms in "bubble traps" and to Mott insulator-superfluid systems in optical lattices. We study the ground state...
Structure and stability of Mott-insulator shells of bosons trapped in an optical lattice (2005)
DeMarco, B., Lannert, C., Vishveshwara, S.
We consider the feasibility of creating a phase of neutral bosonic atoms in which multiple Mott-insulating states coexist in a shell structure and propose an experiment to spatially resolve such a...
Lannert, C., Fisher, Matthew P. A.
We calculate the contribution of deconfined spinons to inelastic neutron scattering (INS) in the fractionalized antiferromagnet (AF*), introduced elsewhere. We find that the presence of free spin-1/2...
The Electron Spectral Function in Two-Dimensional Fractionalized Phases (2001)
Lannert, C., Fisher, Matthew P. A., Senthil, T.
We study the electron spectral function of various zero-temperature spin-charge separated phases in two dimensions. In these phases, the electron is not a fundamental excitation of the system, but...
Quantum Confinement Transition in a d-wave Superconductor (2000)
Lannert, C., Fisher, Matthew P. A., Senthil, T.
We study the nature of the zero-temperature phase transition between a d-wave superconductor and a Mott insulator in two dimensions. In this ``quantum confinement transition'', spin and charge are...