Results 61 to 70 of about 7,892 (272)

Adventure in Topological Phase Transitions in 3+1-D: Non-Abelian Deconfined Quantum Criticalities and a Possible Duality

open access: yesPhysical Review X, 2019
Continuous quantum phase transitions beyond the conventional paradigm of fluctuations of a symmetry-breaking order parameter are challenging for theory.
Zhen Bi, T. Senthil
doaj   +1 more source

A dynamical metric and its ground state from the breaking down of the topological invariance of the Euler characteristic

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Quantum state wave functionals are constructed in exact form for the graviton-like field theory obtained by breaking down the topological symmetry of the string action related with the Euler characteristic of the world-surface; their continuous and ...
R. Cartas-Fuentevilla   +3 more
doaj   +1 more source

Nonliquid cellular states: Gluing gauge-higher-symmetry-breaking versus gauge-higher-symmetry-extension interfacial defects

open access: yesPhysical Review Research, 2022
The existence of quantum nonliquid states and fracton orders, both gapped and gapless states, challenges our understanding of phases of entangled matter. We generalize the cellular topological states to liquid or nonliquid cellular states.
Juven Wang
doaj   +1 more source

Spontaneous symmetry breaking in local gauge quantum field theory; the Higgs mechanism [PDF]

open access: yesCommunications in Mathematical Physics, 1977
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Chiral SURMOFs for Vibrational Circular Dichroism: Multiscale Modeling and Experimental Insights

open access: yesAdvanced Functional Materials, EarlyView.
The use of solid‐state vibrational circular dichroism (VCD) for MOFs is still somewhat unexplored, and in this work, it is shown that chiral surface‐anchored MOFs (SURMOFs) grown on CaF2 provide an excellent platform for VCD. Experimental results are validated through multiscale modeling, showing strong agreement across multiple spectroscopic ...
Ana C. Fingolo   +9 more
wiley   +1 more source

Entanglement asymmetry and symmetry defects in boundary conformal field theory

open access: yesJournal of High Energy Physics
A state in a quantum system with a given global symmetry, G, can be sensitive to the presence of boundaries, which may either preserve or break this symmetry.
Yuya Kusuki   +3 more
doaj   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

open access: yesAdvanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Valence-bond solids, vestigial order, and emergent SO(5) symmetry in a two-dimensional quantum magnet

open access: yesPhysical Review Research, 2020
We introduce a quantum spin-1/2 model with many-body correlated Heisenberg-type interactions on the two-dimensional square lattice, designed so that the system can host a fourfold degenerate plaquette valence-bond solid (PVBS) ground state that ...
Jun Takahashi, Anders W. Sandvik
doaj   +1 more source

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng   +6 more
wiley   +1 more source

Landau ordering phase transitions beyond the Landau paradigm

open access: yesPhysical Review Research, 2020
Continuous phase transitions associated with the onset of a spontaneously broken symmetry are thought to be successfully described by the Landau-Ginzburg-Wilson-Fisher theory of fluctuating order parameters.
Zhen Bi, Ethan Lake, T. Senthil
doaj   +1 more source

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