Results 81 to 90 of about 8,378 (169)

Thermal entanglement in fully connected spin systems and its RPA description

, 2011
We examine the thermal pairwise entanglement in a symmetric system of $n$ spins fully connected through anisotropic $XYZ$-type couplings embedded in a transverse magnetic field.
J. M. Matera, M. A. Nielsen, N. Canosa, R. L. Stratonovich, R. L. Stratonovich, R. Rossignoli   +5 more
core   +1 more source

Analysis of the Generalized Ostrovsky Equation in the Propagation of Surface and Internal Waves in Rotating Fluids

Mathematical Methods in the Applied Sciences, Volume 48, Issue 12, Page 12427-12439, August 2025.
ABSTRACT The Ostrovsky equation models long, weakly nonlinear waves, explaining the propagation of surface and internal waves in a rotating fluid. The study focuses on the generalized Ostrovsky equation. Introduced by Levandosky and Liu, this equation demonstrates the existence of solitary waves through variational methods.
Sol Sáez
wiley   +1 more source

Kısmi türevli difrensiyel denklemlerin çözümünde bazı özel yöntemler [PDF]

, 2017
06.03.2018 tarihli ve 30352 sayılı Resmi Gazetede yayımlanan “Yükseköğretim Kanunu İle Bazı Kanun Ve Kanun Hükmünde Kararnamelerde Değişiklik Yapılması Hakkında Kanun” ile 18.06.2018 tarihli “Lisansüstü Tezlerin Elektronik Ortamda Toplanması ...
Gündoğdu, Hami
core  

Dynamical Chiral Symmetry Breaking, Color Superconductivity, and Bose-Einstein Condensation in an $SU(N_{c})\times U(N_{f})_{L}\times U(N_{f})_{R}$-invariant Supersymmetric Nambu$-$Jona-Lasinio Model

, 2008
We investigate the phenomena of the dynamical chiral symmetry breaking (DCSB), color superconductivity (CSC), and Bose-Einstein condensation (BEC) in an ${\cal N}=1$ four-dimensional generalized SUSY Nambu$-$Jona-Lasinio model at finite temperature and ...
Abrikosov, Alford, Alford, Appelquist, Appelquist, Appelquist, Arai, Arkani-Hamed, Asakawa, Avdeev, Bailin, Bardeen, Bardeen, Binétruy, Blaschke, Bogoliubov, Buchmüller, Buchmüller, Campbell-Smith, Carena, Chen, Chivukula, Clark, Clark, Dimopoulos, Fetter, Giudice, Harnik, Hashida, Hashida, Hill, Hisano, Inagaki, Intriligator, Iwasaki, Kapusta, Klevansky, Kosterlitz, Kugo, Kunihiro, Lane, Maru, Mohapatra, Nambu, Nambu, Nambu, Nambu, Negele, Ohsaku, Ohsaku, Ohsaku, Ohsaku, Ohsaku, Pisarski, Rajagopal, Rapp, Schwarz, Schäfer, Schäfer, Shifman, Shizuya, Shovkovy, Tadafumi Ohsaku, Wess   +63 more
core   +1 more source

New solitary wave and multiple soliton solutions for fifth order nonlinear evolution equation with time variable coefficients

Results in Physics, 2018
In this paper, we investigate the multiple soliton solutions and multiple singular soliton solutions of a class of the fifth order nonlinear evolution equation with variable coefficients of t using the simplified bilinear method based on a transformation
H.M. Jaradat, Muhammed Syam, M. Jaradat, Zead Mustafa, S. Momani   +4 more
doaj   +1 more source

Eigenvalue Spectrum of a Dirac Particle in Static and Spherical Complex Potential

, 2003
It has been observed that a quantum theory need not to be Hermitian to have a real spectrum. We study the non-Hermitian relativistic quantum theories for many complex potentials, and we obtain the real relativistic energy eigenvalues and corresponding ...
Saaidi, Khaled
core   +2 more sources

Increased Performance of Matsubara space calculations: A case study within Eliashberg theory

, 2019
We present a method to considerably improve the numerical performance for solving Eliashberg-type coupled equations on the imaginary axis. Instead of the standard practice of introducing a hard numerical cutoff for treating the infinite summations ...
Aperis, Alex, Oppeneer, Peter M., Schrodi, Fabian   +2 more
core   +1 more source

Exact prefactors in static and dynamic correlation functions of 1D quantum integrable models: applications to the Calogero-Sutherland, Lieb-Liniger and XXZ models

, 2011
In this article we demonstrate a recently developed technique which addresses the problem of obtaining non-universal prefactors of the correlation functions of 1D systems at zero temperature.
A. A. Abrikosov, A. Gogolin, Adilet Imambekov, Aditya Shashi, B. Sutherland, F. D. M. Haldane, I. Affleck, I. G. Macdonald, Jean-Sébastien Caux, K. B. Efetov, K. B. Efetov, M. Abramowitz, M. Gaudin, M. Jimbo, M. Takahashi, Miłosz Panfil, N. A. Slavnov, N. A. Slavnov, T. Giamarchi, V. E. Korepin, V. I. Smirnov, V. I. Smirnov, V. N. Popov, V. N. Popov, Y. Kuramoto, Z. N. C. Ha   +25 more
core   +1 more source

The Perturbed Chen–Lee–Liu Equation: Diverse Optical Soliton Solutions and Other Wave Solutions

Advances in Mathematical Physics
The objective of the present study is to extract the optical soliton solutions (OSSs) of the perturbed Chen–Lee–Liu equation by exerting three techniques, which are the extended Wang’s direct mapping method, tanh/coth function method and the Subequation ...
Kang-Jia Wang
doaj   +1 more source

Construction of optical solitary wave solutions and their propagation for Kuralay system using tanh-coth and energy balance method

Results in Physics
In this article, we study the complex coupled Kuralay system (CKS), which have many applications in different field such as ferromagnetic material and fiber optics.
Sajid Ali, Aman Ullah, Saud Fahad Aldosary, Shafiq Ahmad, Shabir Ahmad   +4 more
doaj   +1 more source