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A general analytical formula for recurrence relations of multisite interaction Ising models in an external magnetic field on the Cayley-type lattices is derived. Using the theory of complex analytical dynamics on the Riemann sphere, a…

Statistical Mechanics · Physics 2009-10-31 N. S. Ananikian , R. G. Ghulghazaryan

The Yang-Lee, Fisher and Potts zeros of the one-dimensional Q-state Potts model are studied using the theory of dynamical systems. An exact recurrence relation for the partition function is derived. It is shown that zeros of the partition…

Statistical Mechanics · Physics 2007-05-23 R. G. Ghulghazaryan , N. S. Ananikian

Showing that the location of the zeros of the partition function can be used to study phase transitions, Yang and Lee initiated an ambitious and very fruitful approach. We give an overview of the results obtained using this approach. After…

Statistical Mechanics · Physics 2009-11-11 Ioana Bena , Michel Droz , Adam Lipowski

Equilibrium systems which exhibit a phase transition can be studied by investigating the complex zeros of the partition function. This method, pioneered by Yang and Lee, has been widely used in equilibrium statistical physics. We show that…

Statistical Mechanics · Physics 2009-11-07 Stephan M Dammer , Silvio R Dahmen , Haye Hinrichsen

Using the electrostatic analogy, we derive an exact formula for the limiting Yang-Lee zero distribution in the random allocation model of general weights. This exhibits a real-space condensation phase transition, which is induced by a…

Statistical Mechanics · Physics 2025-01-28 Zdzislaw Burda , Desmond A. Johnston , Mario Kieburg

We consider how the Lee-Yang description of phase transitions in terms of partition function zeros applies to nonequilibrium systems. Here one does not have a partition function, instead we consider the zeros of a steady-state normalization…

Statistical Mechanics · Physics 2009-11-07 R. A. Blythe , M. R. Evans

We apply the Yang-Lee theory of phase transitions to an urn model of separation of sand. The effective partition function of this nonequilibrium system can be expressed as a polynomial of the size-dependent effective fugacity $z$. Numerical…

Statistical Mechanics · Physics 2009-11-10 Ioana Bena , Francois Coppex , Michel Droz , Adam Lipowski

We revisit the somewhat less studied problem of Yang-Lee zeros of the Ising antiferromagnet. For this purpose, we study two models, the nearest-neighbor model on a square lattice, and the more tractable mean-field model corresponding to…

Statistical Mechanics · Physics 2025-06-23 Muhammad Sedik , Junaid Majeed Bhat , Abhishek Dhar , B Sriram Shastry

The distribution of Lee-Yang zeros not only matters in thermodynamics and quantum mechanics, but also in mathematics. Hereby we propose a nonlinear quantum toy model and discuss the distribution of corresponding Lee-Yang zeros. Utilizing…

Quantum Physics · Physics 2023-08-07 Hong Tao , Yuguo Su , Xingyu Zhang , Jing Liu , Xiaoguang Wang

The distribution of Yang-Lee zeros in the ferromagnetic Ising model in both two and three dimensions is studied on the complex field plane directly in the thermodynamic limit via the tensor network methods. The partition function is…

Strongly Correlated Electrons · Physics 2015-10-28 Artur Garcia-Saez , Tzu-Chieh Wei

To understand the distribution of the Yang-Lee zeros in quantum integrable field theories we analyse the simplest of these systems given by the two-dimensional Yang-Lee model. The grand-canonical partition function of this quantum field…

Statistical Mechanics · Physics 2018-04-12 Giuseppe Mussardo , Riccarda Bonsignori , Andrea Trombettoni

The distributions of the Yang-Lee zeros of the ferromagnetic and antiferromagnetic Q-state Potts models in one dimension are studied for arbitrary Q and temperature. The Yang-Lee zeros of the Potts antiferromagnet have been fully…

Statistical Mechanics · Physics 2015-06-24 Seung-Yeon Kim

We investigate Yang-Lee zeros of grand partition functions as truncated fugacity polynomials of which coefficients are given by the canonical partition functions $Z(T,V,N)$ up to $N \leq N_{\text{max}}$. Such a partition function can be…

High Energy Physics - Phenomenology · Physics 2016-01-20 Kenji Morita , Atsushi Nakamura

Statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. Investigations of Lee-Yang zeros --- complex singularities of the free energy in systems of finite size --- have led to a…

Mesoscale and Nanoscale Physics · Physics 2017-05-08 Kay Brandner , Ville F. Maisi , Jukka P. Pekola , Juan P. Garrahan , Christian Flindt

We study a phase transition in a non-equilibrium model first introduced in [5], using the Yang-Lee description of equilibrium phase transitions in terms of both canonical and grand canonical partition function zeros. The model consists of…

Statistical Mechanics · Physics 2007-05-23 Farhad H Jafarpour

We present both analytic and numerical results on the position of the partition function zeros on the complex magnetic field plane of the $q=2$ (Ising) and $q=3$ states Potts model defined on $\phi^3 $ Feynman diagrams (thin random graphs).…

Statistical Mechanics · Physics 2009-11-07 Luiz C. de Albuquerque , D. Dalmazi

The complex zeros of partition functions were originally investigated by Lee and Yang to explain the behavior of condensing gases. Since then, Lee-Yang zeros have become a powerful tool to describe phase transitions in interacting systems.…

Mesoscale and Nanoscale Physics · Physics 2018-01-17 Aydin Deger , Kay Brandner , Christian Flindt

We study the Yang-Lee zeros of a random matrix partition function with the global symmetries of the QCD partition function. We consider both zeros in the complex chemical potential plane and in the complex mass plane. In both cases we find…

High Energy Physics - Lattice · Physics 2008-11-26 M. A. Halasz , A. D. Jackson , J. J. M. Verbaarschot

The densities of Yang-Lee zeros for the Ising ferromagnet on the $L\times L$ square lattice are evaluated from the exact grand partition functions ($L=3\sim16$). The properties of the density of Yang-Lee zeros are discussed as a function of…

Statistical Mechanics · Physics 2009-11-11 Seung-Yeon Kim

Phase transitions are typically accompanied by non-analytic behaviors of the free energy, which can be explained by considering the zeros of the partition function in the complex plane of the control parameter and their approach to the…

Statistical Mechanics · Physics 2020-07-06 Aydin Deger , Christian Flindt
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