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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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12-26
2014
QUIC seminar: Multipartite Quantum Correlations in Open Quantum Systems
内容： In this work, we present a measure of quantum correlation for a multipartite system, defined as the sum of the correlations for all possible partitions. Our measure can be defined for quantum d...
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12-25
2014
Quantum Journal Club: Quantum Discord and the Power of One Qubit
内容： We use quantum discord to characterize the correlations present in the model called deterministic quantum computation with one quantum bit (DQC1), introduced by Knill and Laflamme [Phys. Rev. L...
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12-25
2014
Quantum Journal Club: Detection and Control of Individual Nuclear Spins Using a
内容： We experimentally isolate, characterize, and coherently control up to six individual nuclear spins that are weakly coupled to an electron spin in diamond. Our method employs multipulse sequence...
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12-11
2014
Quantum Journal Club: Laser cooling and real-time measurement of the nuclear spi
内容： Control over quantum dynamics of open systems is one of the central challenges in quantum science and engineering. Coherent optical techniques, such as coherent population trapping involving da...
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12-11
2014
Quantum Journal Club: Semi-device-independent bounds on entanglement
内容： Detection and quantification of entanglement in quantum resources are two key steps in the implementation of various quantum-information processing tasks. Here, we show that Bell-type inequalit...