2.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP171 papers
- The Graduate University for Advanced Studies, SOKENDAIJP129 papers
- NTT Basic Research LaboratoriesJP96 papers
- Stanford UniversityUS80 papers
- Japan Science and Technology AgencyJP63 papers
- NTT (Japan)JP60 papers
- Centre National de la Recherche ScientifiqueFR55 papers
- New York UniversityUS49 papers
- New York University ShanghaiCN49 papers
- Hewlett-Packard (United Kingdom)GB41 papers
- East China Normal UniversityCN38 papers
- Japanese-French Laboratory for InformaticsJP38 papers
51 papers · 1 filter
Improved Algorithms for Exact and Approximate Boolean Matrix Decomposition
Yuan Sun, Shiwei Ye, Yi Sun +1
An arbitrary Boolean matrix can be decomposed {\em exactly} as , where (resp. ) is an (resp. ) Boolean matrix and …
A hybrid-systems approach to spin squeezing using a highly dissipative ancillary system
Shane Dooley, Emi Yukawa, Yuichiro Matsuzaki +3
Squeezed states of spin systems are an important entangled resource for quantum technologies, particularly quantum metrology and sensing. Here we consider the generation of spin sq…
Engineering Long-Lived Collective Dark States in Spin Ensembles
Stefan Putz, Andreas Angerer, Dmitry O. Krimer +5
Ensembles of electron spins in hybrid microwave systems are powerful and versatile components for future quantum technologies. Quantum memories with high storage capacities are one…
Joint Word Representation Learning using a Corpus and a Semantic Lexicon
Danushka Bollegala, Alsuhaibani Mohammed, Takanori Maehara +1
Methods for learning word representations using large text corpora have received much attention lately due to their impressive performance in numerous natural language processing (…
Electron paramagnetic resonance spectroscopy using a dc-SQUID magnetometer directly coupled to an electron spin ensemble
Hiraku Toida, Yuichiro Matsuzaki, Kosuke Kakuyanagi +5
We demonstrate electron spin polarization detection and electron paramagnetic resonance (EPR) spectroscopy using a direct current superconducting quantum interference device (dc-SQ…
High-energy side-peak emission of exciton-polariton condensates in high density regime
Tomoyuki Horikiri, Makoto Yamaguchi, Kenji Kamide +9
In a standard semiconductor laser, electrons and holes recombine via stimulated emission to emit coherent light, in a process that is far from thermal equilibrium. Exciton-polarito…
Exciton-Polariton Quantum Simulators
Na Young Kim, Yoshihisa Yamamoto
A quantum simulator is a purposeful quantum machine that can address complex quantum problems in a controllable setting and an efficient manner. This chapter introduces a solid-sta…
Exciton-polariton condensates in zero-, one-, and two-dimensional lattices
Na Young Kim, Yoshihisa Yamamoto, Shoko Utsunomiya +3
Microcavity exciton-polaritons are quantum quasi-particles arising from the strong light-matter coupling. They have exhibited rich quantum dynamics rooted from bosonic nature and i…
Dicke Model for Quantum Hall Systems
Y. Hama, M. H. Fauzi, K. Nemoto +2
Quantum Hall (QH) systems consist of many-body electron and nuclear spins. They are coupled so weakly through the hyperfine interaction that normally electron spin dynamics are sca…
Partitioning Algorithms for Improving Efficiency of Topic Modeling Parallelization
Hung Nghiep Tran, Atsuhiro Takasu
Topic modeling is a very powerful technique in data analysis and data mining but it is generally slow. Many parallelization approaches have been proposed to speed up the learning p…
Spatial correlation of two-dimensional Bosonic multi-mode condensates
Wolfgang H. Nitsche, Na Young Kim, Georgios Roumpos +4
We studied the spatial coherence of a Bosonic two-dimensional multi-mode condensate both through measurements and simulations. It is shown that condensates with a constant spatial…
A Regular Representation of Quantum Circuits
Alexandru Paler, Ilia Polian, Kae Nemoto +1
We present a quantum circuit representation consisting entirely of qubit initialisations (I), a network of controlled-NOT gates (C) and measurements with respect to different bases…
Merge Frame Design for Video Stream Switching using Piecewise Constant Functions
Wei Dai, Gene Cheung, Ngai-Man Cheung +2
The ability to efficiently switch from one pre-encoded video stream to another (e.g., for bitrate adaptation or view switching) is important for many interactive streaming applicat…
On the Equivalence among Problems of Bounded Width
Yoichi Iwata, Yuichi Yoshida
In this paper, we introduce a methodology, called decomposition-based reductions, for showing the equivalence among various problems of bounded-width. First, we show that the follo…
Testing Properties of Functions on Finite Groups
Kenta Oono, Yuichi Yoshida
We study testing properties of functions on finite groups. First we consider functions of the form , where is a finite group. We show that conjugate invaria…
Fault-Tolerant High Level Quantum Circuits: Form, Compilation and Description
Alexandru Paler, Ilia Polian, Kae Nemoto +1
Fault-tolerant quantum error correction is a necessity for any quantum architecture destined to tackle interesting, large-scale problems. Its theoretical formalism has been well fo…
In-Network View Synthesis for Interactive Multiview Video Systems
Laura Toni, Gene Cheung, Pascal Frossard
To enable Interactive multiview video systems with a minimum view-switching delay, multiple camera views are sent to the users, which are used as reference images to synthesize add…
The odd Hadwiger's conjecture is "almost'' decidable
Ken-ichi Kawarabayashi
The odd Hadwiger's conjecture, made by Gerads and Seymour in early 1990s, is an analogue of the famous Hadwiger's conjecture. It says that every graph with no odd -minor is $(…
Quantum Hall effect with small numbers of vortices in Bose-Einstein condensates
Tim Byrnes, Jonathan P. Dowling
When vortices are displaced in Bose-Einstein condensates (BEC), the Magnus force gives the system a momentum transverse in the direction to the displacement. We show that Bose-Eins…
Entanglement cost and entangling power of bipartite unitary and permutation operators
Lin Chen, Li Yu
It is known that any bipartite unitary operator of Schmidt rank three is equivalent to a controlled unitary under local unitaries. We propose a standard form of such operators. Usi…
Time-Space Trade-offs for Triangulations and Voronoi Diagrams
Matias Korman, Wolfgang Mulzer, Andre van Renssen +3
Let be a planar -point set. A triangulation for is a maximal plane straight-line graph with vertex set . The Voronoi diagram for is the subdivision of the plane i…
Absorption-based Quantum Communication with NV centres
Burkhard Scharfenberger, Hideo Kosaka, William J. Munro +1
We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV centre's $|\pm 1\rangle \leftrightar…
Characterization of Logic Program Revision as an Extension of Propositional Revision
Nicolas Schwind, Katsumi Inoue
We address the problem of belief revision of logic programs, i.e., how to incorporate to a logic program P a new logic program Q. Based on the structure of SE interpretations, Delg…
Suppression of ac Stark shift scattering rate due to non-Markovian behavior
Muzaffar Q. Lone, Tim Byrnes
The ac Stark shift in the presence of spontaneous decay is typically considered to induce an effective dephasing with a scattering rate equal to , where is…