Global Symmetries, Counterterms, and Duality in Chern-Simons Matter Theories with Orthogonal Gauge Groups [PDF]
, 2017 We study three-dimensional gauge theories based on orthogonal groups. Depending on the global form of the group these theories admit discrete $\theta$-parameters, which control the weights in the sum over topologically distinct gauge bundles.
Clay Córdova, Po-Shen Hsin, N. Seiberg
semanticscholar +1 more source
Global symmetry-breaking and generalized theta-terms in Type IIB EFTs
Journal of High Energy Physics, 2023 A longstanding conjecture states that global symmetries should be absent in quantum gravity. By investigating large classes of Type IIB four-dimensional N $$ \mathcal{N} $$ = 2 effective field theories, we enlist the potential generalized global ...
Thomas W. Grimm +2 more
doaj +1 more source
Gauge-Fixing and Residual Symmetries in Gauge/Gravity Theories with Extra Dimensions [PDF]
, 2008 We study compactified pure gauge/gravitational theories with gauge-fixing terms and show that these theories possess quantum mechanical SUSY-like symmetries between unphysical degrees of freedom.
C. S. Lim +6 more
core +2 more sources
Generalized global symmetries in states with dynamical defects: The case of the transverse sound in field theory and holography [PDF]
, 2018 In this work, we show how states with conserved numbers of dynamical defects (strings, domain walls, etc.) can be understood as possessing generalised global symmetries even when the microscopic origins of these symmetries are unknown.
S. Grozdanov, N. Poovuttikul
semanticscholar +1 more source
Matrix ensembles with global symmetries and ’t Hooft anomalies from 2d gauge theory [PDF]
Journal of High Energy Physics, 2019 The Hilbert space of a quantum system with internal global symmetry G decomposes into sectors labelled by irreducible representations of G. If the system is chaotic, the energies in each sector should separately resemble ordinary random matrix theory. We
D. Kapec, R. Mahajan, D. Stanford
semanticscholar +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Hairs of discrete symmetries and gravity [PDF]
, 2017 Gauge symmetries are known to be respected by gravity because gauge charges carry flux lines, but global charges do not carry flux lines and are not conserved by gravitational interaction.
Choi, Kang Sin +3 more
core +3 more sources
Triangle anomalies and nonrelativistic Nambu-Goldstone modes of generalized global symmetries [PDF]
Physical Review D, 2019 In massless QCD coupled to QED in an external magnetic field, a photon with the linear polarization in the direction of the external magnetic field mixes with the charge neutral pion through the triangle anomaly, leading to one gapless mode with the ...
Noriyuki Sogabe, N. Yamamoto
semanticscholar +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Charge Violation and Alice Behavior in Global and Textured Strings [PDF]
, 2001 Spontaneous breaking of global symmetries can produce ``Alice'' strings: line defects which make unbroken symmetries multivalued, induce apparent charge violation via Aharonov-Bohm interactions, and form point defects when twisted into loops.
A. Balachandran +14 more
core +2 more sources