School of Physics - Research Publications
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ItemSpatial coherent transport of interacting dilute Bose gases(AMER PHYSICAL SOC, 2008-06)
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ItemSingle atom-scale diamond defect allows a large Aharonov-Casher phase(AMER PHYSICAL SOC, 2009-10)
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ItemReconfigurable quantum metamaterials(OPTICAL SOC AMER, 2011-06-06)By coupling controllable quantum systems into larger structures we introduce the concept of a quantum metamaterial. Conventional meta-materials represent one of the most important frontiers in optical design, with applications in diverse fields ranging from medicine to aerospace. Up until now however, metamaterials have themselves been classical structures and interact only with the classical properties of light. Here we describe a class of dynamic metamaterials, based on the quantum properties of coupled atom-cavity arrays, which are intrinsically lossless, reconfigurable, and operate fundamentally at the quantum level. We show how this new class of metamaterial could be used to create a reconfigurable quantum superlens possessing a negative index gradient for single photon imaging. With the inherent features of quantum superposition and entanglement of metamaterial properties, this new class of dynamic quantum metamaterial, opens a new vista for quantum science and technology.
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ItemNo Preview AvailableEngineering electromagnetic metamaterials from coupled cavity arrays(IEEE, 2011-12-01)
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ItemFractional Quantum Hall Physics in Jaynes-Cummings-Hubbard Lattices(AMER PHYSICAL SOC, 2012-06-01)Jaynes-Cummings-Hubbard arrays provide unique opportunities for quantum emulation as they exhibit convenient state preparation and measurement, as well as in situ tuning of parameters. We show how to realize strongly correlated states of light in Jaynes-Cummings-Hubbard arrays under the introduction of an effective magnetic field. The effective field is realized by dynamic tuning of the cavity resonances. We demonstrate the existence of Laughlin-like fractional quantum Hall states by computing topological invariants, phase transitions between topologically distinct states, and Laughlin wave function overlap.
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ItemDomain structures in quantum graphity(AMER PHYSICAL SOC, 2012-08-01)
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ItemCoherent tunneling via adiabatic passage in a three-well Bose-Hubbard system(AMER PHYSICAL SOC, 2012-05-09)
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ItemInterferometry using adiabatic passage in dilute-gas Bose-Einstein condensates(AMER PHYSICAL SOC, 2012-12-05)
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ItemNegative refraction of excitations in the Bose-Hubbard model(AMER PHYSICAL SOC, 2014-10-31)