RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Dissipation-stabilized magnetic phases in anisotropic spin systems*

December 11, 2013 - 1:00pm
Sarang Gopalakrishnan


We consider strongly interacting systems of effective spins, subject to dissipative spin-flip processes associated with optical pumping. We predict the existence of novel magnetic phases in the steady state of this system, which emerge due to the competition between coherent and dissipative processes. Specifically, for strongly anisotropic spin-spin interactions, we find ferromagnetic, antiferromagnetic, and spin-density-wave steady states, which are separated by nonequilibrium phase transitions meeting at a Lifshitz point. Effects of quantum fluctuations and disorder, as well as experimental implementations in ultracold atoms and trapped ions, are discussed.

* T.E. Lee, S. Gopalakrishnan, and M.D. Lukin, Phys. Rev. Lett. 110, 257204 (2013)

CSS 2115
College Park, MD 20742

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to