Results 21 to 30 of about 1,233,026 (301)

Phase transitions properties of N,N-dimethyl-4-nitroaniline

U.Porto Journal of Engineering, 2023
The present work reports an experimental study aiming to determine several thermodynamic properties of fusion and sublimation of the chromophore N,N-dimethyl-4-nitroaniline.
Bruno D. A. Pinheiro, Ana R. R. P. Almeida, Manuel J. S. Monte   +2 more
doaj   +1 more source

Topological phase transitions induced by varying topology and boundaries in the toric code

New Journal of Physics, 2021
One of the important characteristics of topological phases of matter is the topology of the underlying manifold on which they are defined. In this paper, we present the sensitivity of such phases of matter to the underlying topology, by studying the ...
Amit Jamadagni, Arpan Bhattacharyya
doaj   +1 more source

Entanglement Induced Phase Transitions [PDF]

, 2001
Starting from the canonical ensemble over the space of pure quantum states, we obtain an integral representation for the partition function. This is used to calculate the magnetisation of a system of N spin-1/2 particles.
Baxter, Brody, Brody, Brody, Brody, Brody, Cantoni, Dorje C. Brody, Fine, Goldenfeld, Goldstein, Griffiths, Jona-Lasinio, Kibble, Lane P. Hughston, Matthew F. Parry, Schmidt   +16 more
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The effect of the lateral interactions on the critical behavior of long straight rigid rods on two-dimensional lattices [PDF]

Papers in Physics, 2009
Using Monte Carlo simulations and finite-size scaling analysis, the critical behavior of attractive rigid rods of length $k$ ($k$-mers) on square lattices at intermediate density has been studied.
A. J. Ramirez-Pastor, D. H. Linares, P. Longone   +2 more
doaj   +1 more source

Phase transitions in copper tellurides

Eurasian Journal of Physics and Functional Materials, 2023
This paper presents the results of model calculations of the structure of the Cu-Te system at low temperatures, as well as the results of a study of the structure and phase transitions of synthesized non-stoichiometric compounds of copper tellurides. For
N.N. Bikkulova, A.Kh. Kutov, G.R. Akmanova, A.R. Kurbangulov, D.I. Safargaliev, L.V. Tsygankova   +5 more
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Anomalous correlation-induced dynamical phase transitions

Scientific Reports, 2023
The nonanalyticity of the Loschmidt echo at critical times in quantum quenched systems is termed as the dynamical quantum phase transition, extending the notion of quantum criticality to a nonequilibrium scenario.
Niaz Ali Khan, Pei Wang, Munsif Jan, Gao Xianlong   +3 more
doaj   +1 more source

Quantum phase transitions of the diluted O(3) rotor model [PDF]

, 2006
We study the phase diagram and the quantum phase transitions of a site-diluted two-dimensional O(3) quantum rotor model by means of large-scale Monte-Carlo simulations. This system has two quantum phase transitions, a generic one for small dilutions, and
G. Grinstein, Rastko Sknepnek, S. Sachdev, S. Sachdev, Thomas Vojta, W. Selke   +5 more
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Instanton expansions and phase transitions

Journal of High Energy Physics, 2022
A central object in any axionic theory is its periodic potential, which is typically generated by instantons. The goal of this paper is to understand what physically happens to the theory when we lose control of the potential’s instanton expansion.
John Stout
doaj   +1 more source

Ferromagnetic phase transitions in SU(N)

Nuclear Physics B, 2023
We study the thermodynamics of a non-abelian ferromagnet consisting of “atoms” each carrying a fundamental representation of SU(N), coupled with long-range two-body quadratic interactions.
Alexios P. Polychronakos, Konstantinos Sfetsos   +1 more
doaj   +1 more source

Quantum phase transitions

, 2003
In recent years, quantum phase transitions have attracted the interest of both theorists and experimentalists in condensed matter physics. These transitions, which are accessed at zero temperature by variation of a non-thermal control parameter, can ...
Abanov Ar, Affleck I, Affleck I, Altshuler B L, Anderson P W, Balents L, Belitz D, Belitz D, Belitz D, Belitz D, Binder K, Bitko D, Brezin E, Bulla R, Bulla R, Bulla R, Caprara S, Cardy J L, Cardy J L, Castellani C, Castro-Neto A H, Castro-Neto A H, Chakravarty S, Chakravarty S, Chayes J, Chen K, Coleman P, Cox D L, Dagotto E, Finkelstein A M, Finkelstein A M, Fisher D S, Fisher D S, Fisher M P A, Fisher M P A, Fisher M P A, Fradkin E, Gebhard F, Georges A, Goldenfeld N, Gonzalez-Buxton C, Griffiths R B, Grinstein G, Harris A B, Hertz J A, Hewson A C, Huckestein B, Imry Y, Ivanov D A, Jones B A, Jones B A, Kirkpatrick T R, Kirkpatrick T R, Kivelson S A, Kramer B, Kravchenko S V, Laughlin R B, Lee P A, Leggett A J, Ma S-K, Mason N, Matthias Vojta, Metzner W, Millis A J, Motrunich O, Mott N F, Müller-Hartmann E, Narayanan R, Nozières P, Parcollet O, Pich C, Polkovnikov A, Polkovnikov A, Read N, Rosch A, Sachdev S, Satori K, Senthil T, Senthil T Vojta M Sachdev S, Shiba H, Si Q, Sondhi S L, Tranquada J M, Varma C M, Vojta M, Vojta M, Vojta M, Vojta M, Vojta M Fritz L, von Löhneysen H, Wegner F, Wegner F, Wen X G, Wen X-G, Widom B, Williams G V M, Wilson K G, Wilson K G, Wilson K G, Withoff D, Zhang S-C   +100 more
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