Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Zohren, S"'
Autor:
Ebrahimi, R., Zohren, S.
Publikováno v:
J. Stat. Mech. (2018) 033301
In this paper we extend the orthogonal polynomials approach for extreme value calculations of Hermitian random matrices, developed by Nadal and Majumdar [1102.0738], to normal random matrices and 2D Coulomb gases in general. Firstly, we show that thi
Externí odkaz:
http://arxiv.org/abs/1704.07488
Autor:
Suhov, Y., Zohren, S.
We introduce quantum weighted entropy in analogy to an earlier notion of (classical) weighted entropy and derive many of its properties. These include the subadditivity, concavity and strong subadditivity property of quantum weighted entropy, as well
Externí odkaz:
http://arxiv.org/abs/1411.0892
Publikováno v:
J. Stat. Mech. (2014) P08010
We analyse equilibrium phases in a multi-type lattice Widom-Rowlinson model with (i) four particle types, (ii) varying exclusion diameters between different particle types and (iii) large values of fugacity. Contrary to an expectation, it is not the
Externí odkaz:
http://arxiv.org/abs/1403.5825
Publikováno v:
J. Math. Phys. 54, 063301 (2013)
We introduce a transfer matrix formalism for the (annealed) Ising model coupled to two-dimensional causal dynamical triangulations. Using the Krein-Rutman theory of positivity preserving operators we study several properties of the emerging transfer
Externí odkaz:
http://arxiv.org/abs/1301.1483
Publikováno v:
Journal of Statistical Physics 150 (2013) 353-374
We introduce a growth process which samples sections of uniform infinite causal triangulations by elementary moves in which a single triangle is added. A relation to a random walk on the integer half line is shown. This relation is used to estimate t
Externí odkaz:
http://arxiv.org/abs/1203.2869
We discuss uniform infinite causal triangulations and equivalence to the size biased branching process measure - the critical Galton-Watson branching process distribution conditioned on non-extinction. Using known results from the theory of branching
Externí odkaz:
http://arxiv.org/abs/1201.0264
Autor:
Westra, W., Zohren, S.
Publikováno v:
Class. Quantum Grav. 29 (2012) 095021
We present an alternative to Polyakov's induced action for the noncritical string. Our Yang-Mills like action is both local and invariant under coordinate transformations. It defines a teleparallel theory of gravity with interesting links to Horava-L
Externí odkaz:
http://arxiv.org/abs/1106.1460
Publikováno v:
J.Phys.Conf.Ser.246:012028,2010
In this short note we review a recently found formulation of two-dimensional causal quantum gravity defined through Causal Dynamical Triangulations and stochastic quantization. This procedure enables one to extract the nonperturbative quantum Hamilto
Externí odkaz:
http://arxiv.org/abs/1004.0718
Publikováno v:
Europhysics Letters 90 (2010) 10002
We present a novel tight bound on the quantum violations of the CGLMP inequality in the case of infinitely many outcomes. Like in the case of Tsirelson's inequality the proof of our new inequality does not require any assumptions on the dimension of
Externí odkaz:
http://arxiv.org/abs/1003.0616
We show that proper time, when defined in the quantum theory of 2d gravity, becomes identical to the stochastic time associated with the stochastic quantization of space. This observation was first made by Kawai and collaborators in the context of 2d
Externí odkaz:
http://arxiv.org/abs/0911.4211