Coexistence of phase transitions and hysteresis near the onset of Bose-Einstein condensation
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173416" target="_blank" >RIV/00216208:11320/13:10173416 - isvavai.cz</a>
Výsledek na webu
<a href="http://dx.doi.org/10.1103/PhysRevA.87.053617" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.87.053617</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.87.053617" target="_blank" >10.1103/PhysRevA.87.053617</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Coexistence of phase transitions and hysteresis near the onset of Bose-Einstein condensation
Popis výsledku v původním jazyce
Multiple phases occurring in a Bose gas with finite-range interaction are investigated. In the vicinity of the onset of Bose-Einstein condensation (BEC), the chemical potential and the pressure show a van der Waals-like behavior indicating a first-orderphase transition although there is no long-range attraction. Furthermore, the equation of state becomes multivalued near the BEC transition. For a Hartree-Fock or Popov (Hartree-Fock-Bogoliubov) approximation, such a multivalued region can be avoided bythe Maxwell construction. For sufficiently weak interaction, the multivalued region can also be removed using amany-body T-matrix approximation. However, for strong interactions there remains a multivalued region even for the T-matrix approximation and after the Maxwell construction, which is interpreted as a density hysteresis. This unified treatment of normal and condensed phases becomes possible due to the recently found scheme to eliminate self-interaction in the T-matrix approximati
Název v anglickém jazyce
Coexistence of phase transitions and hysteresis near the onset of Bose-Einstein condensation
Popis výsledku anglicky
Multiple phases occurring in a Bose gas with finite-range interaction are investigated. In the vicinity of the onset of Bose-Einstein condensation (BEC), the chemical potential and the pressure show a van der Waals-like behavior indicating a first-orderphase transition although there is no long-range attraction. Furthermore, the equation of state becomes multivalued near the BEC transition. For a Hartree-Fock or Popov (Hartree-Fock-Bogoliubov) approximation, such a multivalued region can be avoided bythe Maxwell construction. For sufficiently weak interaction, the multivalued region can also be removed using amany-body T-matrix approximation. However, for strong interactions there remains a multivalued region even for the T-matrix approximation and after the Maxwell construction, which is interpreted as a density hysteresis. This unified treatment of normal and condensed phases becomes possible due to the recently found scheme to eliminate self-interaction in the T-matrix approximati
Klasifikace
Druh
J<sub>x</sub> - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
CEP obor
BM - Fyzika pevných látek a magnetismus
OECD FORD obor
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Návaznosti výsledku
Projekt
<a href="/cs/project/GAP204%2F10%2F0687" target="_blank" >GAP204/10/0687: Mikroskopická teorie supravodivosti</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2013
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Physical Review A - Atomic Molecular and Optical Physics
ISSN
1050-2947
e-ISSN
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Svazek periodika
87
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
7
Strana od-do
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Kód UT WoS článku
000319279700009
EID výsledku v databázi Scopus
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