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Title Charge and isospin fluctuations in a non-ideal pion gas with dynamically fixed particle number Author info Evgeni E. Kolomeitsev ... [et al.] Author Kolomeitsev Evgeni E. 1970- (34%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (33%)
Borisov Maxim E. (33%)
Source document The European Physical Journal A : Hadrons and Nuclei. Vol. 57, no. 4 (2021), pp. [1-29]. - Berlin : Springer, 2021 Keywords Bose-Einsteinova kondenzácia - Bose-Einstein condensation heavy ion collisions Form. Descr. články - journal articles Language English Country Germany Public work category ADC No. of Archival Copy 49947 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title Bose-Einstein condensation and superfluidity Author info Lev Pitaevskii, Sandro Stringari Author Pitaevskii Lev
Co-authors Stringari Sandro
Issue data Oxford : Oxford University Press , 2018. - xi, 553 s. : il., tab., 25 cm Issue 1st paperback ed. Edition International series of monographs on physics , 164 ISBN 978-0-19-882443-5 Note Bibliografia s. [527]-550. Bibliografické odkazy Additional Variant Titles Bose-Einstein condensation Keywords Bose-Einsteinova kondenzácia - Bose-Einstein condensation Bose-Einsteinov plyn - Bose-Einstein gas supratekutosť - superfluidity Form. Descr. monografie - monographies Language English Country Great Britian systematics 530.1 532.132 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xkni - BOOKS Copy count 1, currently available 0, at library only 1 
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Call number Location Sublocation Umiestnenie Info 378719 Univerzita Mateja Bela Department of physics In-Library Use Only Title Fluctuations in non-ideal pion gas with dynamically fixed particle number Author info E. E. Kolomeitsev, D. N. Voskresensky Author Kolomeitsev Evgeni E. 1970- (50%) UMBFP06 - Katedra fyziky
Co-authors Voskresensky Dmitri (50%)
Source document Nuclear Physics A. Vol. 973, (2018), pp. 89-103. - Amsterdam : Elsevier B.V., 2018 Keywords heavy ion collisions fluctuations Hartree approximation Bose-Einsteinova kondenzácia - Bose-Einstein condensation Language English Country Netherlands systematics 53 Annotation We consider a non-ideal hot pion gas with the dynamically fixed number of particles in the model with the λφ4interaction. The effective Lagrangian for the description of such a system is obtained after dropping the terms responsible for the change of the total particle number. Reactions π+π−↔π0π0, which deter-mine the isospin balance of the medium, are permitted. Within the self-consistent Hartree approximation we compute the effective pion mass, thermodynamic characteristics of the system and the variance of the particle number at temperatures above the critical point of the induced Bose–Einstein condensation when the pion chemical potential reaches the value of the effective pion mass. We analyze conditions for the con-densate formation in the process of thermalization of an initially non-equilibrium pion gas. The normalized variance of the particle number increases with a temperature decrease but remains finite in the critical point of the Bose–Einstein condensation. This is due to the non-perturbative account of the interaction and is in contrast to the ideal-gas case. In the kinetic regime of the condensate formation the variance is shown to stay finite also URL Link na plný text Public work category ADC No. of Archival Copy 43902 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title Hot and dense pion gas with finite chemical potential Author info E. E. Kolomeitsev, D. N. Voskresensky, B. Kämpfer Author Kolomeitsev Evgeni E. 1970- (34%)
Co-authors Voskresensky Dmitri (33%)
Kämpfer B. (33%)
Source document Acta Physica Polonica B. Vol. 27, no. 11 (1996), pp. 3263-3270. - Kraków : Jagellonian University, 1996 ; MESON' 96 : Workshop on Production, Properties and Interactions of Mesons Workshop Keywords pion gas Bose-Einsteinova kondenzácia - Bose-Einstein condensation heavy ion collisions Form. Descr. články - journal articles Language English Country Poland Annotation A dense and hot pion system with a dynamically fixed particle number and an arbitrary charge is investigated with respect to ultra-relativistic heavy-ion collisions. The Lagrangian for describing such a system is derived from Weinberg's chiral Lagrangian for the pion-pion interaction. Pion polarization operators are calculated within the Hartree approximation. The pion spectrum in the isospin symmetrical gas is presented. The effective inmedium pion gap depends sensitively on the density and the temperature, and it is found to exceed both the free pion mass and the corresponding value for the pion gas in chemical equilibrium. The possibility of a BoseEinstein condensation is also discussed URL Link na plný text Link do databázy WoS Public work category AFC No. of Archival Copy 21535 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
