Quantum Hall fractions in ultracold fermionic vapors

Fractional quantum Hall physics with ultracold Rydberg gases in artificial gauge fields

We study ultracold Rydberg-dressed Bose gases subject to artificial gauge fields in the fractional quantum Hall (FQH) regime. The characteristics of the Rydberg interaction give rise to interesting many-body ground states different from standard FQH physics in the lowest Landau level. The nonlocal but rapidly decreasing interaction potential favors crystalline ground states for very dilute syst...

Fermionic phase space method for exact quantum dynamics

Numerical approaches are an indispensable part of endeavours to understand quantum many-body physics in condensed matter and AMO physics. In particular, there is a need for real-time, dynamical simulations, driven in large part by the progress in the control and flexibility of ultracold atom experiments, which has made the dynamically evolving quantum many-body state directly accessible. For bo...

Strong dependence of ultracold chemical rates on electric dipole moments

We use the quantum threshold laws combined with a classical capture model to provide an analytical estimate of the chemical quenching cross sections and rate coefficients of two colliding particles at ultralow temperatures. We apply this quantum threshold model (QT model) to indistinguishable fermionic polar molecules in an electric field. At ultracold temperatures and in weak electric fields, ...

Feshbach resonances in ultracold mixtures of the fermionic quantum gases

First-principles quantum dynamics for fermions: Application to molecular dissociation

We demonstrate that the quantum dynamics of a many-body Fermi-Bose system can be simulated using a Gaussian phase-space representation method. In particular, we consider the application of the mixed fermion-boson model to ultracold quantum gases and simulate the dynamics of dissociation of a Bose-Einstein condensate of bosonic dimers into pairs of fermionic atoms. We quantify deviations of atom...