Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/physrevb.50.3037 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sphaleron Rate of N_{f}=2+1 QCD.
Phys Rev Lett
February 2024
Dipartimento di Fisica dell'Università di Pisa & INFN Sezione di Pisa, Largo Pontecorvo 3, I-56127 Pisa, Italy.
We compute the sphaleron rate of N_{f}=2+1 QCD at the physical point for a range of temperatures 200 MeV≲T≲600 MeV. We adopt a strategy recently applied in the quenched case, based on the extraction of the rate via a modified version of the Backus-Gilbert method from finite-lattice-spacing and finite-smoothing-radius Euclidean topological charge density correlators. The physical sphaleron rate is finally computed by performing a continuum limit at fixed physical smoothing radius, followed by a zero-smoothing extrapolation.
View Article and Find Full Text PDFHigher order topology in a Creutz ladder.
J Phys Condens Matter
July 2023
Department of Physics, Indian Institute of Technology Guwahati-Guwahati, 781039 Assam, India.
A Creutz ladder, is a quasi one dimensional system hosting robust topological phases with localized edge modes protected by different symmetries such as inversion, chiral and particle-hole symmetries. Non-trivial topology is observed in a large region of the parameter space defined by the horizontal, diagonal and vertical hopping amplitudes and a transverse magnetic flux that threads through the ladder. In this work, we investigate higher order topology in a two dimensional extrapolated version of the Creutz ladder.
View Article and Find Full Text PDFDegeneracy-Projected Polarization Formulas for Hall-Type Conductivities.
Phys Rev Lett
January 2022
Physics Department, Technion, 32000 Haifa, Israel.
Kubo formulas for Hall, transverse thermoelectric, and thermal Hall conductivities are simplified into on-shell commutators of degeneracy projected polarizations. The new expressions are computationally economical, and apply to general Hamiltonians without a gap restriction. We show that Hall currents in open boundaries are carried by gapless chiral excitations.
View Article and Find Full Text PDFB(0)-B(0) mixing in unquenched lattice QCD.
Phys Rev Lett
November 2003
Institute of Physics, University of Tsukuba, Tsukuba 305-8571, Japan.
We present an unquenched lattice calculation for the B(0)-B(0) transition amplitude. The calculation, carried out at an inverse lattice spacing 1/a=2.22(4) GeV, incorporates two flavors of dynamical quarks described by the O(a)-improved Wilson fermion action and heavy quarks described by nonrelativistic QCD.
View Article and Find Full Text PDFFinite-lattice extrapolations for a Haldane-gap antiferromagnet.
Phys Rev B Condens Matter
August 1994
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!