Unifying the Anderson transitions in Hermitian and non-Hermitian systems
Physical Review Research, 2022 Non-Hermiticity enriches the tenfold Altland-Zirnbauer symmetry class into the 38-fold symmetry class, where critical behavior of the Anderson transitions (ATs) has been extensively studied recently.
Xunlong Luo +4 more
doaj +1 more source
Probing phase structure of black holes with Lyapunov exponents
Journal of High Energy Physics, 2022 We conjecture that there exists a relationship between Lyapunov exponents and black hole phase transitions. To support our conjecture, Lyapunov exponents of the motion of particles and ring strings are calculated for Reissner-Nordström-AdS black holes ...
Xiaobo Guo +3 more
doaj +1 more source
Universal Scaling and Critical Exponents of the Anisotropic Quantum Rabi Model. [PDF]
Physical Review Letters, 2017 We investigate the quantum phase transition of the anisotropic quantum Rabi model, in which the rotating and counterrotating terms are allowed to have different coupling strengths.
Maoxin Liu +5 more
semanticscholar +1 more source
On critical exponents for self-similar collapse
Journal of High Energy Physics, 2020 We explore systematically perturbations of self-similar solutions to the Einstein-axion-dilaton system, whose dynamics are invariant under spacetime dilations combined with internal 𝔰𝔩(2, ℝ) transformations.
Riccardo Antonelli, Ehsan Hatefi
doaj +1 more source
Disorder-induced critical exponents near a ferromagnetic quantum critical point in Mn1−xCrxSi [PDF]
, 2020 We report the observation of critical behavior in Mn1−xCrxSi (0≤x≤1) close to a T = 0 K quantum critical point, consistent with the Belitz-Kirkpatrick-Vojta (BKV) theory of disordered metallic ferromagnets.
Ganesan, V. +3 more
core +1 more source
Minimally subtracted six loop renormalization of $O(n)$-symmetric $\phi^4$ theory and critical exponents [PDF]
, 2017 We present the perturbative renormalization group functions of $O(n)$-symmetric $\phi^4$ theory in $4-2\varepsilon$ dimensions to the sixth loop order in the minimal subtraction scheme.
M. Kompaniets, E. Panzer
semanticscholar +1 more source
Long-Range Critical Exponents near the Short-Range Crossover. [PDF]
Physical Review Letters, 2017 The d-dimensional long-range Ising model, defined by spin-spin interactions decaying with the distance as the power 1/r^{d+s}, admits a second-order phase transition with continuously varying critical exponents.
C. Behan +3 more
semanticscholar +1 more source
Quantum computing critical exponents [PDF]
Physical Review A, 2021 16 pages, 5 ...
Dreyer, Henrik +2 more
openaire +2 more sources
Tricritical phenomena in holographic chiral phase transitions
Journal of High Energy Physics, 2022 We study critical phenomena at a tricritical point associated with a chiral phase transition which emerges in the D3/D7 model in the presence of a finite baryon number density and an external magnetic field.
Masataka Matsumoto
doaj +1 more source
Dimensional crossover with a continuum of critical exponents for NLS on doubly periodic metric graphs [PDF]
Analysis & PDE, 2018 We investigate the existence of ground states for the focusing nonlinear Schroedinger equation on a prototypical doubly periodic metric graph. When the nonlinearity power is below 4, ground states exist for every value of the mass, while, for every ...
R. Adami +3 more
semanticscholar +1 more source