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7 papers · 2 filters
Local PT symmetry violates the no-signaling principle
Yi-Chan Lee, Min-Hsiu Hsieh, Steven T. Flammia +1
Bender et al. have developed PT-symmetric quantum theory as an extension of quantum theory to non-Hermitian Hamiltonians. We show that when this model has a local PT symmetry actin…
Low-light-level four-wave mixing by quantum interference
Chang-Kai Chiu, Yi-Hsin Chen, Yen-Chun Chen +3
We observed electromagnetically-induced-transparency-based four-wave mixing (FWM) in the pulsed regime at low light levels. The FWM conversion efficiency of 3.8(9)% was observed in…
A Decomposition Form of the Werner State
Ming-Chung Tsai, Po-Chung Chen, Wei-Chi Su +1
In this report, a scheme different from the PT and Wootters concurrence is developed to acquire a criterion to investigate the bipartite separability of the Werner state.
Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light
The LIGO Scientific Collaboration
Nearly a century after Einstein first predicted the existence of gravitational waves, a global network of earth-based gravitational wave observatories is seeking to directly detect…
On the Hardnesses of Several Quantum Decoding Problems
Kao-Yueh Kuo, Chung-Chin Lu
We classify the time complexities of three important decoding problems for quantum stabilizer codes. First, regardless of the channel model, quantum bounded distance decoding is sh…
Hide the interior region of core-shell nanoparticles with quantum invisible cloaks
Jeng Yi Lee, Ray-Kuang Lee
By applying the interplay among the nodal points of partial waves, along with the concept of streamline in fluid dynamics for the probability flux, a quantum invisible cloak to the…