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- The University of TokyoJP226 papers
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7 papers · 2 filters
Divergence radii and the strong converse exponent of classical-quantum channel coding with constant compositions
Milán Mosonyi, Tomohiro Ogawa
There are different inequivalent ways to define the Rényi capacity of a channel for a fixed input distribution . In a 1995 paper Csiszár has shown that for classical discrete me…
Complexity of causal order structure in distributed quantum information processing and its trade-off with entanglement
Eyuri Wakakuwa, Akihito Soeda, Mio Murao
We prove a trade-off relation between the entanglement cost and classical communication complexity of causal order structure of a protocol in distributed quantum information proces…
Theoretical investigation of a spectrally pure-state generation from isomorphs of KDP crystal at near-infrared and telecom wavelengths
Rui-Bo Jin, Neng Cai, Ying Huang +6
Spectrally uncorrelated biphoton state generated from the spontaneous nonlinear optical process is an important resource for quantum information. Currently such spectrally uncorrel…
A Schrödinger equation for relativistic laser-matter interactions
Tor Kjellsson Lindblom, Morten Førre, Eva Lindroth +1
A semi-relativistic formulation of light-matter interaction is derived using the so called propagation gauge and the relativistic mass shift. We show that relativistic effects indu…
Classification and characterization of quantum parametric models in quantum estimation theory
Jun Suzuki
In this paper, we characterize quantum parametric models into different classes based on the estimation error bound, known as the Holevo bound. These classes are given by the class…
Quantum manipulation of biphoton spectral distributions in a 2D frequency space toward arbitrary shaping of a biphoton wave packet
Rui-Bo Jin, Ryoji Shiina, Ryosuke Shimizu
In this work, we experimentally manipulate the spectrum and phase of a biphoton wave packet in a two-dimensional frequency space. The spectrum is shaped by adjusting the temperatur…