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of 39
pro vyhledávání: '"Kheruntsyan, Karen V."'
For many-particle systems with short range interactions the local (same point) particle-particle pair correlation function represents a thermodynamic quantity that can be calculated using the Hellmann-Feynman theorem. Here we exploit this property to
Externí odkaz:
http://arxiv.org/abs/2405.04159
Publikováno v:
Physical Review A 109, 033308 (2024)
We propose an experimental approach for determining thermodynamic properties of ultracold atomic gases with short-range interactions. As a test case, we focus on the one-dimensional (1D) Bose gas described by the integrable Lieb-Liniger model. The pr
Externí odkaz:
http://arxiv.org/abs/2309.02595
Autor:
Thomas, Kieran F., Henson, Bryce M., Wang, Yu, Lewis-Swan, Robert J., Kheruntsyan, Karen V., Hodgman, Sean S., Truscott, Andrew G.
Publikováno v:
The European Physical Journal D, 76, Article number: 244 (2022)
We present an experimentally viable approach to demonstrating quantum non-locality in a matter wave system via a Rarity-Tapster interferometer using two $s$-wave scattering halos generated by colliding helium Bose-Einstein condensates. The theoretica
Externí odkaz:
http://arxiv.org/abs/2206.08560
Publikováno v:
Comptes Rendus. Physique, Vol , Iss , Pp 1-24 (2023)
We study the breathing (monopole) oscillations and their damping in a harmonically trapped one-dimensional (1D) Bose gas in the quasicondensate regime using a finite-temperature classical field approach. By characterising the oscillations via the dyn
Externí odkaz:
https://doaj.org/article/7ea4f6ab1c7c41bf92470c4c8fa95ecb
Publikováno v:
Phys. Rev. A 103, 023315 (2021)
We study the nonequilibrium dynamics of the quantum Newton's cradle in a one-dimensional (1D) Bose gas in the weakly-interacting quasicondensate regime. This is the opposite regime to the original quantum Newton's cradle experiment of Kinoshita et al
Externí odkaz:
http://arxiv.org/abs/1811.01585
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
Autor:
Hodgman, Sean. S., Khakimov, Roman. I., Lewis-Swan, Robert. J., Truscott, Andrew. G., Kheruntsyan, Karen. V.
Publikováno v:
Phys. Rev. Lett. 118, 240402 (2017)
In quantum many-body theory, all physical observables are described in terms of correlation functions between particle creation/annihilation operators. Measurement of such correlation functions can therefore be regarded as an operational solution to
Externí odkaz:
http://arxiv.org/abs/1702.03617
Akademický článek
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Autor:
Linnemann, Daniel, Strobel, Helmut, Muessel, Wolfgang, Schulz, Jonas, Lewis-Swan, Robert J., Kheruntsyan, Karen V., Oberthaler, Markus K.
Publikováno v:
Phys. Rev. Lett. 117, 013001 (2016)
We experimentally demonstrate a nonlinear detection scheme exploiting time-reversal dynamics that disentangles continuous variable entangled states for feasible readout. Spin-exchange dynamics of Bose-Einstein condensates is used as the nonlinear mec
Externí odkaz:
http://arxiv.org/abs/1602.07505
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