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Title: Particle-hole symmetry and electromagnetic response of a half-filled Landau level

Journal Article · · Physical Review B

We derive exact physical consequences of particle-hole symmetry of the ν = 1/2 state of electrons in a strong magnetic field. We show that if the symmetry is not spontaneously broken, the Hall conductivity and the susceptibility satisfy an exact relationship, valid at any wave numbers and any frequencies much below the cyclotron frequency. The relationship holds for clean systems and also for systems with statistically particle-hole symmetric disorder. We work out the constraints this relationship imposes on the theory of the Dirac composite fermion. Here, we also argue that that the exact relationship is violated in the Halperin-Lee-Read (HLR) field theory and present an explicit calculation within a Galilean invariant mean-field approximation to the HLR theory to illustrate the breakdown.

Research Organization:
Univ. of Chicago, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF); Simons Foundation
Grant/Contract Number:
SC0009924; DMR-1254741; FG02-13ER41958
OSTI ID:
1595711
Alternate ID(s):
OSTI ID: 1347050
Journal Information:
Physical Review B, Vol. 95, Issue 12; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (6)

Thermopower and Nernst measurements in a half-filled lowest Landau level journal June 2018
Berry phase of the composite-fermion Fermi sea: Effect of Landau-level mixing journal August 2018
Weiss oscillations and particle-hole symmetry at the half-filled Landau level text January 2016
Bimetric Theory of Fractional Quantum Hall States text January 2017
Berry phase of the composite-fermion Fermi Sea: Effect of Landau-level mixing text January 2018
Dirac Fermion Hierarchy of Composite Fermi Liquids text January 2018