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Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo
Physical Review A, 86 (2012), 3; 033620. https://doi.org/10.1103/PhysRevA.86.033620
Lelas, Karlo; Ševa, Tomislav; Buljan, Hrvoje; Goold, John

Institucijski repozitorij: Repozitorij Prirodoslovno-matematičkog fakulteta

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Lelas, K., Ševa, T., Buljan, H. i Goold, J. (2012). Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo. Physical Review A, 86. (3). doi: 10.1103/PhysRevA.86.033620

Lelas, Karlo, et al. "Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo." Physical Review A, vol. 86, br. 3, 2012. https://doi.org/10.1103/PhysRevA.86.033620

Lelas, Karlo, Tomislav Ševa, Hrvoje Buljan i John Goold. "Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo." Physical Review A 86, br. 3 (2012). https://doi.org/10.1103/PhysRevA.86.033620

Lelas, K., et al. (2012) 'Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo', Physical Review A, 86(3). doi: 10.1103/PhysRevA.86.033620

Lelas K, Ševa T, Buljan H, Goold J. Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo. Physical Review A [Internet]. 2012. [pristupljeno 26.11.2024.];86(3). doi: 10.1103/PhysRevA.86.033620

K. Lelas, T. Ševa, H. Buljan i J. Goold, "Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo", Physical Review A, vol. 86, br. 3, 2012. [Online]. Dostupno na: https://urn.nsk.hr/urn:nbn:hr:217:613944. [Citirano: 26.11.2024.]

Za citiranje koristite ovu mrežnu adresu: https://urn.nsk.hr/urn:nbn:hr:217:613944
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Naslov (engleski)Pinning quantum phase transition in a Tonks-Girardeau gas: Diagnostics by ground-state fidelity and the Loschmidt echo
AutorKarlo Lelas
AutorTomislav Ševa
AutorHrvoje Buljan
AutorJohn Goold
Autorova ustanovaSveučilište u Zagrebu
Prirodoslovno-matematički fakultet
(Fizički odsjek)
Znanstveno / umjetničko
područje, polje i grana		PRIRODNE ZNANOSTI
Fizika
Sažetak (engleski)
We study the pinning quantum phase transition in a Tonks-Girardeau gas, both in equilibrium and out of equilibrium, using the ground-state fidelity and the Loschmidt echo as diagnostic tools. The ground-state fidelity will have a dramatic decrease when the atomic density approaches the commensurate density of one particle per lattice well. This decrease is a signature of the pinning transition from the Tonks to the Mott insulating phase. We study the applicability of the fidelity for diagnosing the pinning transition in experimentally realistic scenarios. We find that fidelity can predict the particle number(s) at which the pinning occurs. In addition, we explore the out-of-equilibrium dynamics of the gas following a sudden quench with a lattice potential. We find that all properties of the ground-state fidelity are reflected in the Loschmidt echo dynamics, i.e., in the nonequilibrium dynamics of the Tonks-Girardeau gas initiated by a sudden quench of the lattice potential.
Ključne riječi (engleski)
Jezikengleski
Vrsta publikacijeZnanstveni rad - Izvorni znanstveni rad
Status objaveObjavljen
Vrsta recenzijeRecenziran - međunarodna recenzija
Verzija publikacijeObjavljena verzija rada (izdavačev PDF)
Naslov časopisaPhysical Review A
Brojčani podacivol. 86, br. 3, 033620
p-ISSN1050-2947
DOIhttps://doi.org/10.1103/PhysRevA.86.033620
URN:NBNurn:nbn:hr:217:613944
Datum objave publikacije2012
ProjektŠifra: 119-0000000-1015
Naziv (hrvatski): Nelinearne pojave i valna dinamika u fotoničkim sustavima
Voditelj: Hrvoje Buljan
Pravna nadležnost: Hrvatska
Financijer: MZOS
Linija financiranja: ZP
URL dokumentahttp://link.aps.org/doi/10.1103/PhysRevA.86.033620
Vrsta resursaTekst
Prava pristupaOtvoreni pristup
Uvjeti korištenjaIkona licence Zaštićeno autorskim pravom.
Javna napomenaCopyright (2012) by the American Physical Society. Received 14 May 2012; published 18 September 2012.
Datum i vrijeme pohrane2019-11-19 21:00:06