Zobrazeno 1 - 10 of 18 pro vyhledávání: '"E. S. Pisanova"'
1
On the classical critical behavior of the specific heat capacity of a model of structural phase transitions with a long-range interaction
Autor: E S Pisanova
Publikováno v: Journal of Physics: Conference Series. 2436:012012
The critical specific heat capacity c of a d-dimensional model describing structural phase transitions in an anharmonic crystal with a long-range interaction (decreasing at large distances r as r −d−σ , 0 < σ ≤ 2) is studied near the classica
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e24da67b67e302a97b69c7414d5ac9c
https://doi.org/10.1088/1742-6596/2436/1/012012
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2
Universal critical amplitudes in a quantum spherical model: Entropy, internal energy and specific heat
Autor: E. S. Pisanova, Ivan Kr. Ivanov
Publikováno v: AIP Conference Proceedings.
A d-dimensional quantum spherical model with a long-range interaction (decreasing at long distances r as r−d−σ, 0
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::086dc9d36a1eb6daf35b6335dcdc5727
https://doi.org/10.1063/1.5091127
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4
Finite-size scaling and bulk critical behavior of a quantum spherical model with a long-range interaction: entropy, internal energy and specific heat
Autor: N. P. Nedev, E. S. Pisanova
Publikováno v: Journal of Physics: Conference Series. 1762:012016
The entropy, the internal energy and the specific heat of a d-dimensional quantum spherical model with a long-range interaction, the decreasing of which is controlled by a parameter σ (0 < σ ≤ 2), are studied close to its quantum critical point i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2f5b98eff604a9b3417dff5be5e5ce41
https://doi.org/10.1088/1742-6596/1762/1/012016
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7
On the low-temperature behavior of the critical specific heat capacity of an anharmonic crystal with long-range interaction
Autor: E. S. Pisanova, Angel Y. Krushkov
Publikováno v: AIP Conference Proceedings.
An exactly solvable lattice model describing structural phase transitions in an anharmonic crystal with long-range interaction (decreasing at large distances r as r−d−σ, where d is the space dimensionality and 0 < σ ≤ 2) is considered near to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e957faf05df78a8304073ef980b93741
https://doi.org/10.1063/1.4944248
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8
Classification of different types of beer according to their colour characteristics
Autor: E. S. Pisanova, D Yanakiev, R Gabrova, J Ruseva, D. Boyadzhiev, Kr. Nikolova
Publikováno v: Journal of Physics: Conference Series. 794:012035
Twenty-two samples from different beers have been investigated in two colour systems - XYZ and SIELab - and have been characterised according to their colour parameters. The goals of the current study were to conduct correlation and discriminant anal
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5af6ebade80b5a40dd1029365e7ba25d
https://doi.org/10.1088/1742-6596/794/1/012035
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9
Theory of a spherical-quantum-rotors model: Low-temperature regime and finite-size scaling
Autor: N. S. Tonchev, E. S. Pisanova, Hassan Chamati
Publikováno v: Physical Review B. 57:5798-5811
The quantum rotors model can be regarded as an effective model for the low-temperature behavior of the quantum Heisenberg antiferromagnets. Here, we consider a $d$-dimensional model in the spherical approximation confined to a general geometry of the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e082bfc58541ba3f15848f35fa6db04
https://doi.org/10.1103/physrevb.57.5798
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10
Modified finite-size scaling for anharmonic crystals with quantum fluctuations
Autor: N. S. Tonchev, E. S. Pisanova
Publikováno v: Physica A: Statistical Mechanics and its Applications. 227:325-333
The modified finite-size scaling (for dimensions d ⩾ d > , where d > is the upper critical dimensionality) is verified in the closed vicinity of both the classical and the quantum multicritical points by the example of a quantum model for an anharm
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a79952f3849fb17dbdc77682d6e02df4
https://doi.org/10.1016/0378-4371(95)00388-6
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