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Quantum Optics of Chiral Spin Networks

Event Details

Event Dates: 

Tuesday, April 14, 2015 - 4:00pm

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Peter Zoller

Speaker Affiliation(s): 

Institute for Theoretical Physics, University of Innsbruck
Seminar Type/Subject

Scientific Seminar Type: 

  • JILA Public Seminar

Event Details & Abstract: 

We study driven-dissipative dynamics of two-level atoms (spin-½ systems) coupled to a chiral 1D bosonic waveguide. By chiral coupling we mean an asymmetric coupling of the atomic decay to the left and right propagating guided modes. We formulate a quantum optical master equation treatment for this non-equilibrium dynamics Remarkably, our master equation predicts steady states in form of pure states consisting of quantum dimers (a dissipative 1D valence bond solid), or entangled spin-clusters. Our model has a natural realization with atoms coupled to nanofibers or nanostructures, or with spin chains coupled by dipolar interactions (trapped ions or polar molecules). We conclude with a theory outlook on how modern many-body quantum techniques (DMRG) can be applied to efficiently compute non-Markovian dynamics in a quantum optics context.