Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Wright, Tod M."'
Publikováno v:
SciPost Phys. 4, 011 (2018)
We use the coordinate Bethe ansatz to study the Lieb-Liniger model of a one-dimensional gas of bosons on a finite-sized ring interacting via an attractive delta-function potential. We calculate zero-temperature correlation functions for seven particl
Externí odkaz:
http://arxiv.org/abs/1705.09168
The problem of understanding how a coherent, macroscopic Bose-Einstein condensate (BEC) emerges from the cooling of a thermal Bose gas has attracted significant theoretical and experimental interest over several decades. The pioneering achievement of
Externí odkaz:
http://arxiv.org/abs/1601.06197
Publikováno v:
Phys. Rev. A 91, 023611 (2015)
We investigate the relaxation dynamics of the integrable Lieb-Liniger model of contact-interacting bosons in one dimension following a sudden quench of the collisional interaction strength. The system is initially prepared in its noninteracting groun
Externí odkaz:
http://arxiv.org/abs/1407.4998
Publikováno v:
Phys. Rev. Lett. 113, 050601 (2014)
We demonstrate the role of interactions in driving the relaxation of an isolated integrable quantum system following a sudden quench. We consider a family of integrable hard-core lattice anyon models that continuously interpolates between noninteract
Externí odkaz:
http://arxiv.org/abs/1312.4657
Publikováno v:
Phys. Rev. A 87, 063637 (2013)
In general, isolated integrable quantum systems have been found to relax to an apparent equilibrium state in which the expectation values of few-body observables are described by the generalized Gibbs ensemble. However, recent work has shown that rel
Externí odkaz:
http://arxiv.org/abs/1304.2778
Publikováno v:
Phys. Rev. A 87, 063611 (2013)
We study the equilibrium correlations of a Bose gas in an elongated three-dimensional harmonic trap using a grand-canonical classical-field method. We focus in particular on the progressive transformation of the gas from the normal phase, through a p
Externí odkaz:
http://arxiv.org/abs/1209.3297
We present our views on the issues raised in the chapter by Griffin and Zaremba [A. Griffin and E. Zaremba, in Quantum Gases: Finite Temperature and Non-Equilibrium Dynamics, N. P. Proukakis, S. A. Gardiner, M. J. Davis, and M. H. Szymanska, eds., Im
Externí odkaz:
http://arxiv.org/abs/1206.5472
Autor:
Davis, Matthew J., Wright, Tod M., Blakie, P. Blair, Bradley, Ashton S., Ballagh, Rob J., Gardiner, Crispin W.
We review c-field methods for simulating the non-equilibrium dynamics of degenerate Bose gases beyond the mean-field Gross-Pitaevskii approximation. We describe three separate approaches that utilise similar numerical methods, but have distinct regim
Externí odkaz:
http://arxiv.org/abs/1206.5470
Autor:
Wright, Tod M.
In this thesis, we perform investigations into the behaviour of finite-temperature degenerate Bose gases using a classical-field formalism, focussing in particular on the dynamics of quantum vortices in these systems. We demonstrate that the coherenc
Externí odkaz:
http://arxiv.org/abs/1011.5710
Akademický článek
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