Results 21 to 30 of about 1,073,400 (288)
PT-symmetry broken by point-group symmetry [PDF]
, 2013 We discuss a PT-symmetric Hamiltonian with complex eigenvalues. It is based on the dimensionless Schr\"{o}dinger equation for a particle in a square box with the PT-symmetric potential $V(x,y)=iaxy$.
Cotton F. A. +4 more
core +3 more sources
Calculating the symmetry of hexamethylcyclohexane
Macedonian Journal of Chemistry and Chemical Engineering, 2007 An Euclidean graph associated with a molecule is defined by a weighted graph with adjacency matrix. Balasubramanian (1995) computed the Euclidean graphs and their automorphism groups for benzene, eclipsed and staggered forms of ethane, and eclipsed and ...
Ahmad Gholami +2 more
doaj +1 more source
Topological axion electrodynamics and 4-group symmetry
Physics Letters B, 2021 We study higher-form symmetries and a higher group in the low energy limit of a (3+1)-dimensional axion electrodynamics with a massive axion and a massive photon.
Yoshimasa Hidaka +2 more
doaj +1 more source
A double chain of coupled circuits in analogy with mechanical lattices
International Journal of Mathematics and Mathematical Sciences, 1991 A unitary transformation obtained from group theoretical considerations is applied to the problem of finding the resonant frequencies of a system of coupled LC-circuits.
J. N. Boyd, P. N. Raychowdhury
doaj +1 more source
Exact and approximate strategies for symmetry reduction in model checking [PDF]
, 2006 Symmetry reduction techniques can help to combat the state space explosion problem for model checking, but are restricted by the hard problem of determining equivalence of states during search.
Bouquet, Fabrice +2 more
core +4 more sources
Non-expanding horizons: multipoles and the symmetry group
Journal of High Energy Physics, 2022 It is well-known that blackhole and cosmological horizons in equilibrium situations are well-modeled by non expanding horizons (NEHs) [1–3]. In the first part of the paper we introduce multipole moments to characterize their geometry, removing the ...
Abhay Ashtekar +3 more
doaj +1 more source
Gauging Lie group symmetry in (2+1)d topological phases
SciPost Physics, 2023 We present a general algebraic framework for gauging a 0-form compact, connected Lie group symmetry in (2+1)d topological phases. Starting from a symmetry fractionalization pattern of the Lie group $G$, we first extend $G$ to a larger symmetry group ...
Meng Cheng, Po-Shen Hsin, Chao-Ming Jian
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Symmetries, Group Actions, and Entanglement [PDF]
Open Systems & Information Dynamics, 2006 We address several problems concerning the geometry of the space of Hermitian operators on a finite-dimensional Hilbert space, in particular the geometry of the space of density states and canonical group actions on it. For quantum composite systems we discuss and give examples of entanglement measures.
GRABOWSKI J, KUS M, MARMO, GIUSEPPE
openaire +3 more sources
Clifford Group and Unitary Designs under Symmetry
PRX Quantum, 2023 We have generalized the well-known statement that the Clifford group is a unitary 3-design into symmetric cases by extending the notion of unitary design.
Yosuke Mitsuhashi, Nobuyuki Yoshioka
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Orbit Entropy and Symmetry Index Revisited
Mathematics, 2021 The size of the orbits or similar vertices of a network provides important information regarding each individual component of the network. In this paper, we investigate the entropy or information content and the symmetry index for several classes of ...
Maryam Jalali-Rad +3 more
doaj +1 more source