Results 1 to 10 of about 135,037 (159)

Anomaly in Open Quantum Systems and its Implications on Mixed-State Quantum Phases [PDF]

PRX Quantum
In this paper, we develop a systematic approach to characterize the ^{′}t Hooft anomaly in open quantum systems. Owing to nontrivial couplings to the environment, symmetries in such systems manifest as either strong or weak type.
Zijian Wang, Linhao Li
doaj   +3 more sources

On exotic consistent anomalies in (1+1)$d$: A ghost story [PDF]

SciPost Physics, 2021
We revisit 't Hooft anomalies in (1+1)$d$ non-spin quantum field theory, starting from the consistency and locality conditions, and find that consistent U(1) and gravitational anomalies cannot always be canceled by properly quantized (2+1)$d$ classical ...
Chi-Ming Chang, Ying-Hsuan Lin
doaj   +2 more sources

Gravitational anomalies of fermionic higher-spin fields [PDF]

Journal of High Energy Physics, 2022
Using the Atiyah-Singer index theorem, we formally compute gravitational anomalies for fermionic higher-spin fields in two, six and ten dimensions, as well as the U(1) mixed gauge-gravitational anomaly in four dimensions.
Victor Lekeu, Yi Zhang
doaj   +2 more sources

3d one-form mixed anomaly and entanglement entropy [PDF]

Journal of High Energy Physics, 2019
We study mixed anomaly between G 1 and G 2 of one-form finite symmetry G 1 × G 2 in 3d Chern-Simons theories. We assign a quantum entanglement structure to two linked G-symmetry lines (Wilson loops) and compute the entanglement entropy S[G].
Yang Zhou
doaj   +2 more sources

Non-invertible self-duality defects of Cardy-Rabinovici model and mixed gravitational anomaly [PDF]

Journal of High Energy Physics, 2022
We study properties of self-duality symmetry in the Cardy-Rabinovici model. The Cardy-Rabinovici model is the 4d U(1) gauge theory with electric and magnetic matters, and it enjoys the SL(2, ℤ) self-duality at low-energies. SL(2, ℤ) self-duality does not
Yui Hayashi, Yuya Tanizaki
doaj   +4 more sources

Supersymmetric Calculation of Mixed KäHLER-Gauge and Mixed KäHLER-Lorentz Anomalies [PDF]

Nucl.Phys. B418 (1994) 535-570, 1993
We present a manifestly supersymmetric procedure for calculating the contributions from matter loops to the mixed K\"{a}hler-gauge and to the mixed K\"{a}hler- Lorentz anomalies in $N=1, D=4$ supergravity-matter systems. We show how this procedure leads to the well-known result for the mixed K\"{a}hler-gauge anomaly.
Gabriel Lopes Cardoso, Burt A. Ovrut
openalex   +3 more sources

Mixed modulus and anomaly mediation in light of the muon g − 2 anomaly [PDF]

Journal of High Energy Physics, 2021
The new measurement of the anomalous magnetic moment of muon at the Fermilab Muon g − 2 experiment has strengthened the significance of the discrepancy between the standard model prediction and the experimental observation from the BNL measurement.
Kwang Sik Jeong, Junichiro Kawamura, Chan Beom Park   +2 more
doaj   +2 more sources

Mixed-State Quantum Anomaly and Multipartite Entanglement [PDF]

Physical Review X
Quantum entanglement measures of many-body states have been increasingly useful to characterize phases of matter. Here, we explore a surprising connection between mixed-state entanglement and ’t Hooft anomaly.
Leonardo A. Lessa, Meng Cheng, Chong Wang   +2 more
doaj   +3 more sources

Condensates and anomaly cascade in vector-like theories [PDF]

Journal of High Energy Physics, 2021
We study the bilinear and higher-order fermion condensates in 4-dimensional SU(N) gauge theories with a single Dirac fermion in a general representation.
Mohamed M. Anber
doaj   +2 more sources

A non-perturbative mixed anomaly and fractional hydrodynamic transport [PDF]

Journal of High Energy Physics
We present a new non-perturbative ’t Hooft anomaly afflicting a quantum field theory with symmetry group G = U(1) × ℤ2 in four dimensions. We use the Adams spectral sequence to compute that the bordism group $${\Omega }_{5}^{{\text{Spin}}}$$ (BG), which ...
Joe Davighi, Nakarin Lohitsiri, Napat Poovuttikul   +2 more
doaj   +2 more sources