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01-05
2015
Quantum Control of Superconducting Circuits
内容： We develop an efficient scheme that allows for arbitrary operations on a cavity mode using a strongly dispersive qubit-cavity interaction and time-dependent drives. The scheme can readily be im...
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03-25
2015
Quantum communication with realistic devices
内容： Quantum key distribution is proven to offer unconditional security in communication between two remote users with ideal devices. Unfortunately, ideal devices never exist in practice and device ...
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12-30
2014
Tackling decoherence via weak quantum measurement and quantum measurement revers
内容： Decoherence, often caused by unavoidable coupling with the environment, leads to degradation of quantum coherence. For a multipartite quantum system, decoherence leads to degradation of entangl...
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03-26
2015
Quantum Journal Club: Maxwell's Refrigerator: An Exactly Solvable Model
内容： We describe a simple and solvable model of a device that—like the ‘‘neat-fingered being’’ in Maxwell’s famous thought experiment—transfers energy from a cold system to a hot system by re...
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04-10
2015
QUIC Seminar: Trustworthy Quantum Information
内容： Quantum mechanics promises extraordinary capabilities for computation and cryptography. However, quantum information is not only fragile, but also impossible to verify directly for classical be...
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04-02
2015
Qunatum Journal Club: Enhanced Quantum Interface with Collective Ion-Cavity Coup
内容： We prepare a maximally entangled state of two ions and couple both ions to the mode of an optical cavity. The phase of the entangled state determines the collective interaction of the ions with...