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8 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…
Asymptotic State Discrimination and a Strict Hierarchy in Distinguishability Norms
Eric Chitambar, Min-Hsiu Hsieh
In this paper, we consider the problem of discriminating quantum states by local operations and classical communication (LOCC) when an arbitrarily small amount of error is permitte…
Quantum random walks on congested lattices
Keith R. Motes, Alexei Gilchrist, Peter P. Rohde
We consider quantum random walks on congested lattices and contrast them to classical random walks. Congestion is modelled with lattices that contain static defects which reverse t…
Obtain -state from three-qubit -state on rate 1
Nengkun Yu, Cheng Guo, Runyao Duan
In this paper, we study the entanglement transformation rate between multipartite states under stochastic local operations and classical communication (SLOCC). Firstly, we show tha…
On Chip Manipulation of Single Photons from a Diamond Defect
J. E. Kennard, J. P. Hadden, L. Marseglia +10
Operating reconfigurable quantum circuits with single photon sources is a key goal of photonic quantum information science and technology. We use an integrated waveguide device com…
A Return to the Optimal Detection of Quantum Information
Eric Chitambar, Min-Hsiu Hsieh
In 1991, Asher Peres and William Wootters wrote a seminal paper on the nonlocal processing of quantum information [\textit{Phys. Rev. Lett.} \textbf{66} 1119 (1991)]. We return to…