PIRSA:19080072

Quantum Work of an Optical Lattice and Boundary Field Theory

Andrei, N. (2019). Quantum Work of an Optical Lattice and Boundary Field Theory. Perimeter Institute. https://pirsa.org/19080072

Andrei, Natan. Quantum Work of an Optical Lattice and Boundary Field Theory. Perimeter Institute, Aug. 09, 2019, https://pirsa.org/19080072 

          @misc{ pirsa_PIRSA:19080072,
            doi = {10.48660/19080072},
            url = {https://pirsa.org/19080072},
            author = {Andrei, Natan},
            keywords = {Condensed Matter, Quantum Fields and Strings, Quantum Information},
            language = {en},
            title = {Quantum Work of an Optical Lattice and Boundary Field Theory},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {aug},
            note = {PIRSA:19080072 see, \url{https://pirsa.org}}
          }

Natan Andrei

Rutgers University

Talk number
PIRSA:19080072
Collection
Talk Type
Subject
Abstract
We study the quantum work associated with the nonequilibrium quench of an optical lattice as it evolves from initial Mott type states with large potential barriers under the Sine-Gordon Hamiltonian that describes the dynamics of the system when the barriers are suddenly lowered. The calculations are carried out by means of the Boundary Bethe Ansatz approach where the initial and final states of the quench are applied as boundary states on the evolving system. We calculate exactly the Loschmidt amplitude, the fidelity and work distribution characterizing the quenches for different values of the interaction strength.