Results 1 to 10 of about 2,617,384 (176)
Observation of time-reversal symmetry breaking in the band structure of altermagnetic RuO2 [PDF]
Science Advances, 2023 Altermagnets are an emerging elementary class of collinear magnets. Unlike ferromagnets, their distinct crystal symmetries inhibit magnetization while, unlike antiferromagnets, they promote strong spin polarization in the band structure.
O. Fedchenko +23 more
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Entanglement asymmetry as a probe of symmetry breaking [PDF]
Nature Communications, 2022 A measure of symmetry breaking in a quantum many-body system could provide insight into its dynamics. Ares et al. introduce a subsystem measure of symmetry breaking dubbed entanglement asymmetry and apply it to quantum quench dynamics in spin chains ...
F. Ares, Sara Murciano, P. Calabrese
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Noninvertible Chiral Symmetry and Exponential Hierarchies [PDF]
Physical Review X, 2022 We elucidate the fate of classical symmetries which suffer from abelian Adler-Bell-Jackiw anomalies. Instead of being completely destroyed, these symmetries survive as non-invertible topological global symmetry defects with worldvolume anyon degrees of ...
Clay Córdova, K. Ohmori
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Continuous symmetry breaking in a two-dimensional Rydberg array [PDF]
Nature, 2022 A two-dimensional dipolar XY model with a continuous spin-rotational symmetry is realized using a programmable Rydberg quantum simulator, complementing recent studies using the Rydberg-blockade mechanism to realize Ising-type interactions showing ...
Cheng Chen +15 more
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Real Spectra in Non-Hermitian Hamiltonians Having PT Symmetry [PDF]
, 1997 The condition of self-adjointness ensures that the eigenvalues of a Hamiltonian are real and bounded below. Replacing this condition by the weaker condition of $\mathrm{PT}$ symmetry, one obtains new infinite classes of complex Hamiltonians whose spectra
C. Bender, S. Boettcher
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Holographic symmetry algebras for gauge theory and gravity [PDF]
Journal of High Energy Physics, 2021 All 4D gauge and gravitational theories in asymptotically flat spacetimes contain an infinite number of non-trivial symmetries. They can be succinctly characterized by generalized 2D currents acting on the celestial sphere.
A. Guevara +3 more
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Radiative Corrections as the Origin of Spontaneous Symmetry Breaking [PDF]
, 1973 We investigate the possibility that radiative corrections may produce spontaneous symmetry breakdown in theories for which the semiclassical (tree) approximation does not indicate such breakdown.
E. Weinberg
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Symmetry and Topology in Non-Hermitian Physics [PDF]
Physical Review X, 2018 We develop a complete theory of symmetry and topology in non-Hermitian physics. We demonstrate that non-Hermiticity ramifies the celebrated Altland-Zirnbauer symmetry classification for insulators and superconductors. In particular, charge conjugation is
K. Kawabata +3 more
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Symmetry TFTs from String Theory [PDF]
Communications in Mathematical Physics, 2021 We determine the $$d+1$$ d + 1 dimensional topological field theory, which encodes the higher-form symmetries and their ’t Hooft anomalies for d -dimensional QFTs obtained by compactifying M-theory on a non-compact space X .
Fabio Apruzzi +4 more
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Symmetry-break in Voronoi tessellations [PDF]
, 2009 We analyse in a common framework the properties of the Voronoi tessellations resulting from regular 2D and 3D crystals and those of tessellations generated by Poisson distributions of points, thus joining on symmetry breaking processes and the approach ...
Symmetry-break In Voronoi Tessellations +1 more
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