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Thomas Barthel

Barthel

Charles H. Townes Assistant Professor of Physics

Theoretical and Numerical Quantum Many-Body Physics:

  • Strongly correlated quantum matter
  • Phase transitions and criticality
  • Nonequilibrium phenomena, open driven-dissipative quantum systems, and transport
  • Information theoretic aspects of quantum many-body systems
  • Integrable models
  • Tensor network state methods (MPS, TTNS, PEPS, MERA)
  • Quantum computation and simulation for the investigation of quantum matter
  • Ultracold atoms in optical lattices
  • Sotchastic dynamics in networks, epidemic outbreaks

Appointments and Affiliations

  • Charles H. Townes Assistant Professor of Physics
  • Assistant Professor of Physics
  • Member of the Duke Quantum Center

Contact Information

Education

  • Ph.D. Rheinisch-Westfalische Technische Hochshule Aachen (Germany), 2009

Research Interests

• Strongly correlated quantum many-particle systems
• Nonequilibrium phenomena, open quantum systems, and transport
• Information theoretic aspects like entanglement
• Integrable models
• Tensor network state methods (DMRG, MPS, MERA, PEPS)
• Quantum computation and simulation for the investigation of quantum matter
• Ultracold atoms in optical lattices
• Stochastic dynamics in networks

Courses Taught

  • PHYSICS 624: Open Quantum Systems
  • PHYSICS 590: Selected Topics in Theoretical Physics
  • PHYSICS 464D: Quantum Mechanics I
  • PHYSICS 142L9D: General Physics II (Discussion)
  • MATH 690-70: Topics in Applied Mathematics
  • ECE 624: Open Quantum Systems

Representative Publications

  • Miao, Q; Barthel, T, Equivalence of cost concentration and gradient vanishing for quantum circuits: an elementary proof in the Riemannian formulation, Quantum Science and Technology, vol 9 no. 4 (2024) [10.1088/2058-9565/ad6fca] [abs].
  • Miao, Q; Barthel, T, Isometric tensor network optimization for extensive Hamiltonians is free of barren plateaus, Physical Review A, vol 109 no. 5 (2024) [10.1103/PhysRevA.109.L050402] [abs].
  • Zhang, Y; Barthel, T, Criteria for Davies irreducibility of Markovian quantum dynamics, Journal of Physics A: Mathematical and Theoretical, vol 57 no. 11 (2024) [10.1088/1751-8121/ad2a1e] [abs].
  • Zhang, Y; Barthel, T, Driven-dissipative Bose-Einstein condensation and the upper critical dimension, Physical Review A, vol 109 no. 2 (2024) [10.1103/PhysRevA.109.L021301] [abs].
  • Chen, H; Barthel, T, Machine learning with tree tensor networks, CP rank constraints, and tensor dropout, IEEE Transactions on Pattern Analysis and Machine Intelligence (2024) [10.1109/TPAMI.2024.3396386] [abs].