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New Journal of Physics, ISSN 1367-2630, 08/2017, Volume 19, Issue 8, p. 83009
Yang-Lee edge singularities are the branch point of free energy on the complex plane of physical parameters and have been shown to be the simplest universality... 
Yang-Lee edge singularity | Lee-Yang zeros | spin decoherence | RENORMALIZATION-GROUP | BRANCHED POLYMERS | PHYSICS, MULTIDISCIPLINARY | STATISTICS | PHASE-TRANSITIONS | MAGNETIZATION DATA | DENSITY | DIMENSIONS | ISING-MODEL | FERROMAGNET | ZEROS | Phase transitions
Journal Article
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, ISSN 0217-751X, 06/2019, Volume 34, Issue 17
We use the effective potential method to study the PT-symmetric i phi(3) field theory in 6 - epsilon space-time dimensions. For epsilon = 0, we obtained the... 
EIGENVALUES | OPERATOR | Yang-Lee edge singularity | Non-Hermitian models | PT-symmetric breaking | PHYSICS, NUCLEAR | effective potential | QUANTUM-MECHANICS | PHYSICS, PARTICLES & FIELDS
Journal Article
ENTROPY, ISSN 1099-4300, 09/2019, Volume 21, Issue 9, p. 836
We study the scaling behavior of the Berry phase in the Yang-Lee edge singularity (YLES) of the non-Hermitian quantum system. A representative model, the... 
dissipative phase transition | PHYSICS, MULTIDISCIPLINARY | parity-time symmetry-breaking phase transition | Berry phase | Yang-Lee edge singularity | FIELD | GEOMETRIC PHASE
Journal Article
Physical Review Letters, ISSN 0031-9007, 10/2013, Volume 111, Issue 16, p. 161602
Recently an efficient numerical method has been developed to implement the constraints of crossing symmetry and unitarity on the operator dimensions and... 
PHYSICS, MULTIDISCIPLINARY | LEE EDGE SINGULARITY
Journal Article
by Kim, SY
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, ISSN 0374-4884, 09/2011, Volume 59, Issue 3, pp. 2205 - 2208
The Yang-Lee edge singularity of the square-lattice Ising ferromagnet in a nonzero magnetic field provides indispensable information for finding its unknown... 
DENSITY | DIMENSIONS | Nonzero magnetic field | Square-lattice Ising ferromagnet | PHYSICS, MULTIDISCIPLINARY | Yang-Lee edge singularity | DISORDER | STATE POTTS-MODEL | PARTITION-FUNCTION | MAGNETIZATION DATA | ZEROS | CIRCLE
Journal Article
Journal of Physics: Conference Series, ISSN 1742-6596, 03/2008, Volume 104, Issue 1, pp. 012034 - 4797
This paper studies the Yang-Lee singularity of the 2-dimensional Ising model on the cylinder via transfer matrix and finite-size scaling techniques. These... 
PHYSICS, CONDENSED MATTER | Yang-Lee singularity | PHYSICS, APPLIED | FIELD-THEORY | UNITARITY | 3-STATE POTTS-MODEL | ALGEBRA | CONFORMAL INVARIANT THEORIES | Ising model | conformal field theory | PHYSICS, MATHEMATICAL | 2 DIMENSIONS
Journal Article
Journal of Physics A: Mathematical and Theoretical, ISSN 1751-8121, 06/2010, Volume 43, Issue 25, pp. 255002 - 255002
Here we study the partition function zeros of the one-dimensional Blume-Emery-Griffiths model close to their edge singularities. The model contains four... 
ORDER | PHYSICS, MULTIDISCIPLINARY | COMPLEX TEMPERATURE PLANE | PHASE-TRANSITIONS | ISING-MODEL | STATE POTTS-MODEL | PHYSICS, MATHEMATICAL | YANG-LEE ZEROS | LATTICE | Couplings | Partitions | Singularities | Mathematical analysis | Joining | Mathematical models | Magnetic fields | Density
Journal Article
Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, 09/2008, Volume 78, Issue 3, p. 031138
In ferromagnetic spin models above the critical temperature (T>Tcr) the partition function zeros accumulate at complex values of the magnetic field (H-E) with... 
DENSITY | PHYSICS, FLUIDS & PLASMAS | PHASE-TRANSITIONS | FIELD | ISING-MODEL | PHYSICS, MATHEMATICAL | YANG-LEE ZEROS | FERROMAGNET | PARTITION-FUNCTION | Physics - Statistical Mechanics
Journal Article
International Journal of Modern Physics B, ISSN 0217-9792, 10/2008, Volume 22, Issue 27, pp. 4793 - 4797
This paper studies the Yang–Lee singularity of the 2-dimensional Ising model on the cylinder via transfer matrix and finite-size scaling techniques. These... 
Conformal field theory | Ising model | Yang-Lee singularity
Journal Article
Reports on Progress in Physics, ISSN 0034-4885, 06/2007, Volume 70, Issue 6, pp. 947 - 1018
The Hamiltonian H specifies the energy levels and time evolution of a quantum theory. A standard axiom of quantum mechanics requires that H be Hermitian... 
PT-SYMMETRY | REAL SPECTRUM | PHYSICS, MULTIDISCIPLINARY | OPERATOR DIFFERENTIAL-EQUATIONS | INVARIANT PERIODIC POTENTIALS | FIELD-THEORY | SQUARE-WELL | SPONTANEOUS BREAKDOWN | SYMMETRIC QUANTUM-MECHANICS | LEE EDGE SINGULARITY | PSEUDO-HERMITICITY | Physics - High Energy Physics - Theory
Journal Article
Nature Communications, ISSN 2041-1723, 06/2017, Volume 8, Issue 1, p. 15791
Synthetic non-conservative systems with parity-time (PT) symmetric gain-loss structures can exhibit unusual spontaneous symmetry breaking that accompanies... 
GAS | LOCALIZATION | WAVES | MULTIDISCIPLINARY SCIENCES | PHASE-TRANSITION | LEE EDGE SINGULARITY
Journal Article
Nuclear Physics, Section B, ISSN 0550-3213, 2005, Volume 705, Issue 3, pp. 504 - 520
Journal Article
Physica A: Statistical Mechanics and its Applications, ISSN 0378-4371, 2006, Volume 367, pp. 207 - 214
We studied distribution of zeros of the partition function of ferromagnetic Ising model near the Yang–Lee edge on two self-similar structures. We have shown... 
Renormalization-group | Fractals | Yang–Lee edge | Yang-Lee edge | SELF-SIMILAR STRUCTURES | INVARIANCE | DIMENSIONS | PHYSICS, MULTIDISCIPLINARY | renormalization-group | LATTICES | fractals | Ferromagnetism | Universities and colleges | Analysis | Antitank weapons
Journal Article
International Journal of Modern Physics B, ISSN 0217-9792, 11/2008, Volume 22, Issue 28, pp. 4967 - 4973
At the Yang–Lee edge singularity, finite-size scaling behavior is used to measure the low-lying excitation spectrum of the Ising quantum spin chain for free... 
Conformal field theory | Ising model | Yang-Lee singularity | Free boundaries | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | free boundaries | PHENOMENOLOGICAL RENORMALIZATION | BOUNDARY-CONDITIONS | FIELD-THEORY | conformal field theory | PHYSICS, MATHEMATICAL | CRITICAL EXPONENTS | DIMENSIONS | CONFORMAL-INVARIANCE | UNITARITY | SYSTEMS
Journal Article
European Physical Journal C, ISSN 1434-6044, 01/2018, Volume 78, Issue 1, pp. 1 - 22
We show how the use of standard perturbative RG in dimensional regularization allows for a renormalization group-based computation of both the spectrum and a... 
RENORMALIZATION-GROUP | CONFORMAL-INVARIANCE | FIELD-THEORIES | EQUATION | LEE EDGE SINGULARITY | CRITICAL EXPONENTS | GEOMETRY | PHYSICS, PARTICLES & FIELDS | Perturbation theory | Thermal expansion | Ising model | Regularization
Journal Article
Physical Review D - Particles, Fields, Gravitation and Cosmology, ISSN 1550-7998, 07/2014, Volume 90, Issue 2
We revisit the classic O(N) symmetric scalar field theories in d dimensions with interaction (phi(i)phi(i))(2). For 2 < d < 4 these theories flow to the... 
PHASE-TRANSITIONS | ASTRONOMY & ASTROPHYSICS | 1/N EXPANSION | VECTOR MODEL | SIGMA-MODEL | HIGHER-SPIN FIELDS | OPERATOR PRODUCT EXPANSIONS | LEE EDGE SINGULARITY | QUANTUM-FIELD-THEORY | CRITICAL EXPONENTS | SYMMETRY-BREAKING | PHYSICS, PARTICLES & FIELDS
Journal Article
Scientific Reports, ISSN 2045-2322, 12/2018, Volume 8, Issue 1, pp. 3080 - 7
Universality classes of non-unitary critical theories in two-dimensions are characterized by the central charge. However, experimental determination of the... 
COHERENT DYNAMICS | ELASTIC-SCATTERING THEORIES | FIELD-THEORY | STATISTICS | MULTIDISCIPLINARY SCIENCES | MODEL | LEE EDGE SINGULARITY | Magnetic fields | Quantum theory
Journal Article
by Ghatak, A and Das, T
JOURNAL OF PHYSICS-CONDENSED MATTER, ISSN 0953-8984, 07/2019, Volume 31, Issue 26, p. 263001
Both theoretical and experimental studies of topological phases in non-Hermitian systems have made a remarkable progress in the last few years of research. In... 
PHYSICS, CONDENSED MATTER | PT-SYMMETRY | PT-symmetric system | LASER | CLASSIFICATION | TIME-REVERSAL | exceptional points | LEE EDGE SINGULARITY | PSEUDO-HERMITICITY | topological insulator | SOLITONS | PHASE-TRANSITION | QUANTUM-MECHANICS | non-Hermitian Hamiltonian
Journal Article
International Journal of Modern Physics B, ISSN 0217-9792, 02/2006, Volume 20, Issue 4, pp. 495 - 504
This paper studies the Yang–Lee edge singularity of 2-dimensional (2D) Ising model through a quantum spin chain. In particular, finite-size scaling... 
Conformal theory | Ising | Yang-Lee singularity | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | PHENOMENOLOGICAL RENORMALIZATION | FIELD-THEORY | PHYSICS, MATHEMATICAL | CRITICAL EXPONENTS | DIMENSIONS | CONFORMAL-INVARIANCE | conformal theory | UNITARITY | 3-STATE POTTS-MODEL | SYSTEMS
Journal Article