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SUMMARY:Strongly Interacting Many Body Physics with Circuit Quantum Electrodynamics Networks
DESCRIPTION:In its infancy circuit quantum electrodynamics (cQED) has quickly started reproducing fundamental quantum optical experiments, e.g. observation of vacuum rabi oscillations in frequency and time domain, with unprecedented cooperativity. This was possible because of the large coupling strength of the quasi one-dimensional microwave field of the superconducting transmission line resonators to the macroscopic dipole moment of superconducting qubits.
Since then cQED has matured to a discipline of experimental physics capable of performing fundamental quantum information tasks and is currently on the verge of crossing the border between few- to many body physics. This opens up a exciting realm of completely new physical phenomena. Because of the ubiquitous influence of the electromagnetic environment however the number of microwave photons is not conserved which separates cQED systems from other quantum simulators involving atoms, e.g. cold atoms in optical latices. Instead cQED is ideally suited for exploring quantum many-body physics in the driven dissipative regime where the interplay of constant injection of microwave photons and the unpreventable loss of microwave photons into the electromagnetic environment generates a whole new class of steady- but not equilibrium states.
We propose a Transmon based simulator for a Bose Hubbard Hamilton operator and examine the driven dissipative regime of a Bose Hubbard dimer. We elaborate on the Transmon approach and come up with a new type of  Josephson junction interrupted resonator with intrinsic nonlinearity. We explore novel synchronization phenomena in a resonator interrupted by multiple Josephson junctions.
LOCATION:Erwin Schrödinger Saal
DTSTART:20141111T110000
DTEND:20141111T120000
TZID: Europe/Vienna
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