Grégoire Ithier


  • TW20 0EX

Personal profile

Personal profile

Department of Physics

Office: Wilson Building W059


Research interests

Quantum engineering, Decoherence, Thermalization, Mesoscopic physics, Random Matrix Theory.

Theory of Quantum Decoherence and Thermalization

  • Dynamical typicality and self-averaging of reduced density matrices
  • Unconventional stationary states and unconventional partition functions
  • Typical out of equilibrium dynamics of strongly interacting quantum systems
  • Information propagation and entanglement in large quantum systems
  • Applications in condensed matter (DOS, LDOS)

Mathematical and Numerical tools for the dynamics of large quantum systems:

  • Generalized central limit theorems and measure concentration
  • Random Matrices (Haar invariant, Wigner, Two Body Random Interactions)
  • Averages and correlations of Green functions
  • Applications to the eigenvectors and eigenvalues statistics
  • Numerics: exact diagonalization

Quantum engineering (experimental)

  •  Superconducting circuits: quantum bits, Josephson Bifurcation Amplifiers and Cavity Bifurcation Amplifiers.
  • Noise spectral analysis in superconducting circuits
  • Nano-superfluidic cavities coupled to microwave resonators
  • Microwave engineering at cryogenic temperatures



Collaborations and top research areas from the last five years

Recent external collaboration on country/territory level. Dive into details by clicking on the dots or