Two-orbital SU(N) magnetism with ultracold alkaline-earth atoms
- A. Gorshkov, M. Hermele, A. Rey
- 18 May 2009
Fermionic alkaline-earth atoms have unique properties that make them attractive candidates for the realization of atomic clocks and degenerate quantum gases. At the same time, they are attracting…
Time-Resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
- S. Trotzky, P. Cheinet, I. Bloch
- 12 December 2007
By dynamically modifying the potential bias between neighboring lattice sites, the magnitude and sign of the superexchange interaction can be controlled, thus allowing the system to be switched between antiferromagnetic and ferromagnetic spin interactions.
Observation of dipolar spin-exchange interactions with lattice-confined polar molecules
This work constitutes an initial exploration of the behaviour of many-body spin models with direct, long-range spin interactions and lays the groundwork for future studies of many -body dynamics in spin lattices.
Ultracold Fermi gases with emergent SU(N) symmetry
- M. Cazalilla, A. Rey
- PhysicsReports on progress in physics. Physical Society
- 12 March 2014
Recent experimental and theoretical progress on ultracold alkaline-earth Fermi gases with emergent SU(N) symmetry is reviewed and some of the challenges that lie ahead for the realization of such phases such as reaching the temperature scale required to observe magnetic and more exotic quantum orders are discussed.
Many-Body Quantum Spin Dynamics with Monte Carlo Trajectories on a Discrete Phase Space
- J. Schachenmayer, A. Pikovski, A. Rey
- 19 August 2014
Interacting spin systems are of fundamental relevance in different areas of physics, as well as in quantum information science, and biology. These spin models represent the simplest, yet not fully…
Measuring out-of-time-order correlations and multiple quantum spectra in a trapped-ion quantum magnet
- M. Gärttner, J. Bohnet, A. Safavi-Naini, M. L. Wall, J. Bollinger, A. Rey
- PhysicsNature Physics
- 31 August 2016
Controllable arrays of ions and ultracold atoms can simulate complex many-body phenomena and may provide insights into unsolved problems in modern science. To this end, experimentally feasible…
Quantum spin dynamics and entanglement generation with hundreds of trapped ions
- J. Bohnet, B. Sawyer, J. Bollinger
- 11 December 2015
It is shown that a two-dimensional “crystal” of around 200 9Be+ ions held together by magnetic and electric fields in a so-called Penning trap can simulate quantum magnetism, which sets the stage for simulations with more complicated forms of interaction that classical computers would find intractable.
Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism
This study lays the groundwork for using alkaline-earth atoms as testbeds for important orbital models by probing the non-equilibrium two-orbital SU(N) magnetism via Ramsey spectroscopy of atoms confined in an array of two-dimensional optical traps.
Tunable superfluidity and quantum magnetism with ultracold polar molecules.
- A. Gorshkov, S. Manmana, A. Rey
- PhysicsPhysical Review Letters
- 8 June 2011
The tunability and the long-range nature of the interactions in the t-J-V-W model enable enhanced superfluidity and it is shown that Bloch oscillations in a tilted lattice can be used to probe the phase diagram experimentally.
Synthetic Spin-Orbit Coupling in an Optical Lattice Clock.
- M. L. Wall, A. Koller, A. Rey
- PhysicsPhysical Review Letters
- 19 September 2015
It is demonstrated how standard protocols such as Rabi and Ramsey spectroscopy that take advantage of the sub-Hertz resolution of state-of-the-art clock lasers can perform momentum-resolved band tomography and determine SOC-induced s-wave collisions in nuclear-spin-polarized fermions.