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12-16
2015
Quantum Journal Club: Semiconductor-Nanowire-Based Superconducting Qubit
Abstract: We introduce a hybrid qubit based on a semiconductor nanowire with an epitaxially grown superconductor layer. Josephson energy of the transmonlike device (“gatemon”) is controlled by an e...
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05-22
2014
Quantum Journal Club: Loophole-Free Bell Test for Continuous Variables viaWave a
Abstract: We derive two classes of multimode Bell inequalities under local realistic assumptions, which are violated only by the entangled states negative under partial transposition in accordance wi...
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04-20
2017
Quantum Journal Club: Generating 3 qubit quantum circuits with neural networks
Abstract: A new method for compiling quantum algorithms is proposed and tested for a three qubit system. The proposed method is to decompose a a unitary matrix U, into a product of simpler Uj via a n...
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12-11
2014
Quantum Journal Club: Laser cooling and real-time measurement of the nuclear spi
Abstract: 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 involvin...
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06-05
2019
Topological triply-degenerate points in ultracold atoms and photonic hyperbolic metamaterials
Abstract: Topological states of matter provide a fertile ground for discovering new quasiparticles in condensed matter physics, such as Weyl and Dirac fermions, which were originally predicted in hig...
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08-16
2012
Information theoretic security -- from classical to quantum ---
Abstract: We treat the security when a given random number is partially leaked to a third party. In this case, application of hash functions generates secure key. In this talk, we treat what kinds of...