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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...
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12-19
2011
Quantum many-body phases with trapped ions and cold atoms
Abstract: Trapped ions and cold atoms which are highly controllable offer us the most reliable and scalable quantum simulators. In this talk I will discuss firstly how to use trapped ions interacting...
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03-28
2013
Experimental determination of nuclear magnetic octupole moment of 137Ba+ ion
Abstract: We have performed precision measurements of the hyperfine intervals of the 5D3/2 and 5D5/2 manifolds of a single trapped ion, 137Ba+. We have used rf spectroscopy to measure the hyperfine i...
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08-04
2011
Quantum Monte Carlo Studies of Correlated Electrons on Honeycomb Structures
Abstract: At sufficiently low temperatures, condensed-matter systems tend to develop order. An notable exception to this behavior is quantum spin-liquids, where fluctuations prevent transition to an ...
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12-01
2015
Quantum Journal Club: Single-photon continuous-variable quantum key distribution
Abstract: We propose a new quantum key distribution protocol in which information is encoded on continuous variables of a single photon. In this protocol, Alice randomly encodes her information on ei...