Light-Matter Interactions and many body dynamics

Interactions between light and matter can be exploited to create novel states of light. These may take the form of squeezed or antibunched single mode light, or entangled multimode states that can be leveraged for quantum information purposes. Analogues to such states can also be created in ultra-cold atom systems, through entangling tunnel coupling interactions. We explore parallels between optical and atomic realizations of engtangling interactions.

Quantum fluid of light as a many body simulator

Optical quantum fluids are distinguished by precise experimental control and high fidelity non-destructive measurements. Ultra-precise control of initial states coupled with a wealth of information about the optical field opens many new areas for exploration. An intriguing possibility is to study dynamcis of the Bose-Hubbard transition in a quantum fluid of light loaded into an analogue lattice potential.

Synthetic Spatial Dimensions

Controlled temporal evolution can be used to create synthetic spatial dimensions by tailoring interaction terms in the system hamiltonian.

Associated publications

  • Steady states, squeezing, and entanglement in intracavity triplet down conversion
    Mathew D. E. Denys, M.K. Olsen, Luke S. Trainor, Harald G. L. Schwefel, A. S. Bradley
    Optics Communications 484, 126699 (2021)
    Open access:
  • Thermally robust spin correlations between two 85Rb atoms in an optical microtrap
    Pimonpan Sompet, Stuart S. Szigeti, E. Schwartz, A. S. Bradley, Mikkel F. Andersen
    Nature Communications 10, 1 (2019)
    Open access:
  • Mesoscopic Dynamical Differences from Quantum State Preparation in a Bose-Hubbard Trimer
    M. K. Olsen, Tyler W. Neely, A. S. Bradley
    Physical Review Letters 120, 23 (2018)
    Open access:
  • Quantum-correlated twin-atom laser from a Bose-Hubbard system
    M. K. Olsen, A. S. Bradley
    Physical review A 95, 6 (2017)
    Open access:
  • Quantum ultracold atomtronics
    M. K. Olsen, A. S. Bradley
    Physical Review A 91, 4 (2015)
    Open access:
  • Numerical representation of quantum states in the positive-P and Wigner representations
    M. K. Olsen, A. S. Bradley
    Optics Communications 282, 19 3924 (2009)
    Open access:
  • Continuous variable tripartite entanglement and Einstein–Podolsky–Rosen correlations from triple nonlinearities
    M. K. Olsen, A. S. Bradley, M. D. Reid
    Journal of Physics B Atomic Molecular and Optical Physics 39, 11 2515 (2006)
    Open access:
  • Bright tripartite entanglement in triply concurrent parametric oscillation
    A. S. Bradley, M. K. Olsen, Olivier Pfister, Raphael C. Pooser
    Physical Review A 72, 5 (2005)
    Open access: