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Scientific paper - Original scientific paper
Loschmidt echo in one-dimensional interacting Bose gases
Physical Review A, 84 (2011), 6; 063601. https://doi.org/10.1103/PhysRevA.84.063601
Lelas, Karlo; Ševa, Tomislav; Buljan, Hrvoje

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Lelas, K., Ševa, T. & Buljan, H. (2011). Loschmidt echo in one-dimensional interacting Bose gases. Physical Review A, 84. (6). doi: 10.1103/PhysRevA.84.063601

Lelas, Karlo, et al. "Loschmidt echo in one-dimensional interacting Bose gases." Physical Review A, vol. 84, no. 6, 2011. https://doi.org/10.1103/PhysRevA.84.063601

Lelas, Karlo, Tomislav Ševa and Hrvoje Buljan. "Loschmidt echo in one-dimensional interacting Bose gases." Physical Review A 84, no. 6 (2011). https://doi.org/10.1103/PhysRevA.84.063601

Lelas, K., Ševa, T. and Buljan, H. (2011) 'Loschmidt echo in one-dimensional interacting Bose gases', Physical Review A, 84(6). doi: 10.1103/PhysRevA.84.063601

Lelas K, Ševa T, Buljan H. Loschmidt echo in one-dimensional interacting Bose gases. Physical Review A [Internet]. 2011 [cited 2024 December 23];84(6). doi: 10.1103/PhysRevA.84.063601

K. Lelas, T. Ševa and H. Buljan, "Loschmidt echo in one-dimensional interacting Bose gases", Physical Review A, vol. 84, no. 6, 2011. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:877943. [Accessed: 23 December 2024]

Metadata
Title (english)Loschmidt echo in one-dimensional interacting Bose gases
AuthorKarlo Lelas
AuthorTomislav Ševa
AuthorHrvoje Buljan
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We explore Loschmidt echo in two regimes of one- dimensional interacting Bose gases: the strongly interacting Tonks-Girardeau (TG) regime, and the weakly interacting mean-field regime. We find that the Loschmidt echo of a TG gas decays as a Gaussian when small (random and time independent) perturbations are added to the Hamiltonian. The exponent is proportional to the number of particles and the magnitude of a small perturbation squared. In the mean-field regime the Loschmidt echo shows richer behavior: it decays faster for larger nonlinearity, and the decay becomes more abrupt as the nonlinearity increases ; it can be very sensitive to the particular realization of the noise potential, especially for relatively small nonlinearities.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review A
Numberingvol. 84, no. 6, 063601
p-ISSN1050-2947
DOIhttps://doi.org/10.1103/PhysRevA.84.063601
URN:NBNurn:nbn:hr:217:877943
Publication2011
ProjectNumber: 119-0000000-1015
Title (croatian): Nelinearne pojave i valna dinamika u fotoničkim sustavima
Leader: Hrvoje Buljan
Jurisdiction: Croatia
Funding stream: ZP
Document URLhttp://link.aps.org/doi/10.1103/PhysRevA.84.063601
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2011) by the American Physical Society. Received 12 April 2011; published 2 December 2011.
Created on2019-11-15 18:14:37