Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quantum Liouville theorem based on Haar measure

Journal Article · · Physical Review. B
Liouville theorem (L theorem) reveals robust incompressibility of the distribution function in phase space, given arbitrary potentials. However, its quantum generalization, Wigner flow, is compressible, i.e., L theorem is only conditionally true (e.g., for perfect Harmonic potential). Here, we develop quantum L theorem (rigorous incompressibility) for arbitrary potentials (interacting or not) in Hamiltonians. Haar measure, instead of symplectic measure dp$$\bigwedge$$dq used in Wigner’s scheme, plays a central role. The argument is based on general measure theory, independent of specific spaces or coordinates. Comparison of classical and quantum is made: for instance, here we address why Haar measure and metric preservation do not work in the classical case. Applications of the theorems in statistics, topological phase transition, ergodic theory, etc., are discussed.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
2337492
Alternate ID(s):
OSTI ID: 2340149
OSTI ID: 2473754
Report Number(s):
IS-J--11,297; IS-J--11,311
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 14 Vol. 109; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (34)

Distribution functions in physics: Fundamentals journal April 1984
Formalisms of Band Theory book January 1962
Quantum Phase Transitions book January 2011
Creating stable Floquet–Weyl semimetals by laser-driving of 3D Dirac materials journal January 2017
Theory of Floquet band formation and local pseudospin textures in pump-probe photoemission of graphene journal May 2015
Ultrafast manipulation of topologically enhanced surface transport driven by mid-infrared and terahertz pulses in Bi2Se3 journal February 2019
Light quantum control of persisting Higgs modes in iron-based superconductors journal January 2021
Chirality manipulation of ultrafast phase switches in a correlated CDW-Weyl semimetal journal January 2024
Terahertz-light quantum tuning of a metastable emergent phase hidden by superconductivity journal June 2018
A light-induced phononic symmetry switch and giant dissipationless topological photocurrent in ZrTe5 journal January 2021
Lightwave-driven gapless superconductivity and forbidden quantum beats by terahertz symmetry breaking journal July 2019
Electronic origin of high superconducting critical temperature in trilayer cuprates journal September 2023
Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach journal March 2016
The Joys of Haar Measure book January 2013
Geometric pumping and dephasing at topological phase transition journal January 2022
Theory of polarization of crystalline solids journal January 1993
Quantum critical point in graphene approached in the limit of infinitely strong Coulomb interaction journal June 2007
Topological insulators with inversion symmetry journal July 2007
Topological field theory of time-reversal invariant insulators journal November 2008
Ultrafast nonthermal terahertz electrodynamics and possible quantum energy transfer in the Nb 3 Sn superconductor journal March 2019
Wigner Flow Reveals Topological Order in Quantum Phase Space Dynamics journal January 2013
Generalized Floquet Theory: Application to Dynamical Systems with Memory and Bloch’s Theorem for Nonlocal Potentials journal April 2013
Terahertz Second-Harmonic Generation from Lightwave Acceleration of Symmetry-Breaking Nonlinear Supercurrents journal May 2020
Quantized Hall Conductance in a Two-Dimensional Periodic Potential journal August 1982
Light-Driven Raman Coherence as a Nonthermal Route to Ultrafast Topology Switching in a Dirac Semimetal journal April 2020
Controlled Population of Floquet-Bloch States via Coupling to Bose and Fermi Baths journal December 2015
Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions journal January 1996
Classification of topological quantum matter with symmetries journal August 2016
Topological photonics journal March 2019
Emergence of topological semimetals in gap closing in semiconductors without inversion symmetry journal May 2017
Foundations and Interpretation of Quantum Mechanics journal June 2000
A Concise Treatise on Quantum Mechanics in Phase Space book June 2013
Quantization Methods: a Guide for Physicists and Analysts journal May 2005
Ultrafast Martensitic Phase Transition Driven by Intense Terahertz Pulses journal January 2023