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
29 papers · 1 filter
Constructing Quantum Network Coding Schemes from Classical Nonlinear Protocols
Hirotada Kobayashi, François Le Gall, Harumichi Nishimura +1
The k-pair problem in network coding theory asks to send k messages simultaneously between k source-target pairs over a directed acyclic graph. In a previous paper [ICALP 2009, Par…
Quantum measurements of atoms using cavity QED
Adetunmise C. Dada, Erika Andersson, Martin L. Jones +2
Generalized quantum measurements are an important extension of projective or von Neumann measurements, in that they can be used to describe any measurement that can be implemented…
Limitation for linear maps in a class for detection and quantification of bipartite nonclassical correlation
Akira SaiToh, Robabeh Rahimi, Mikio Nakahara
Eigenvalue-preserving-but-not-completely-eigenvalue-preserving (EnCE) maps were previously introduced for the purpose of detection and quantification of nonclassical correlation, e…
Quantum interactive proofs with weak error bounds
Tsuyoshi Ito, Hirotada Kobayashi, John Watrous
This paper proves that the computational power of quantum interactive proof systems, with a double-exponentially small gap in acceptance probability between the completeness and so…
The competition numbers of Hamming graphs with diameter at most three
Boram Park, Yoshio Sano
The competition graph of a digraph D is a graph which has the same vertex set as D and has an edge between x and y if and only if there exists a vertex v in D such that (x,v) and (…
Finding topological subgraphs is fixed-parameter tractable
Martin Grohe, Ken-ichi Kawarabayashi, Dániel Marx +1
We show that for every fixed undirected graph , there is a time algorithm that tests, given a graph , if contains as a topological subgraph (that is, a…
Ancilla-based quantum simulation
Katherine L. Brown, Suvabrata De, Vivien M. Kendon +1
We consider simulating the BCS Hamiltonian, a model of low temperature superconductivity, on a quantum computer. In particular we consider conducting the simulation on the qubus qu…
CRAM: Compressed Random Access Memory
Jesper Jansson, Kunihiko Sadakane, Wing-Kin Sung
We present a new data structure called the \emph{Compressed Random Access Memory} (CRAM) that can store a dynamic string of characters, e.g., representing the memory of a compu…
Layered architecture for quantum computing
N. Cody Jones, Rodney Van Meter, Austin G. Fowler +4
We develop a layered quantum computer architecture, which is a systematic framework for tackling the individual challenges of developing a quantum computer while constructing a coh…
Photon Antibunching and Magnetospectroscopy of a Single Fluorine Donor in ZnSe
K. De Greve, S. M. Clark, D. Sleiter +6
We report on the optical investigation of single electron spins bound to fluorine donor impurities in ZnSe. Measurements of photon antibunching establish the presence of single, is…
Packing six T-joins in plane graphs
Zdenek Dvorak, Ken-ichi Kawarabayashi, Daniel Kral
Let G be a plane graph and T an even subset of its vertices. It has been conjectured that if all T-cuts of G have the same parity and the size of every T-cut is at least k, then G…
A superconducting qubit as a quantum transformer routing entanglement between a microscopic quantum memory and a macroscopic resonator
Alexander Kemp, Shiro Saito, William J. Munro +2
We demonstrate experimentally the creation and measurement of an entangled state between a microscopic two level system and a macroscopic superconducting resonator where their indi…
Long-lived qubit from three spin-1/2 atoms
Rui Han, Niels Lörch, Jun Suzuki +1
A system of three spin-1/2 atoms allows the construction of a reference-frame-free (RFF) qubit in the subspace with total angular momentum . The RFF qubit stays coherent per…
Nuclear Feedback in a Single Electron-Charged Quantum Dot under Pulsed Optical Control
Thaddeus D. Ladd, David Press, Kristiaan De Greve +7
Electron spins in quantum dots under coherent control exhibit a number of novel feedback processes. Here, we present experimental and theoretical evidence of a feedback process bet…
A BCS wavefunction approach to the BEC-BCS crossover of exciton-polariton condensates
Tim Byrnes, Tomoyuki Horikiri, Natsuko Ishida +1
The crossover between low and high density regimes of exciton-polariton condensates is examined using a BCS wavefunction approach. Our approach is an extension of the BEC-BCS cross…
Quantum Hall Charge Sensor for Single-Donor Nuclear Spin Detection in Silicon
D. Sleiter, N. Y. Kim, K. Nozawa +3
We propose a novel optical and electrical hybrid scheme for the measurement of nuclear spin qubits in silicon. By combining the environmental insensitivity of the integer quantum H…
Single vortex-antivortex pair in an exciton polariton condensate
Georgios Roumpos, Michael D. Fraser, Andreas Löffler +3
In a homogeneous two-dimensional system at non-zero temperature, although there can be no ordering of infinite range, a superfluid phase is predicted for a Bose liquid. The stabili…
Reduce, reuse, recycle, for robust cluster state generation
Dominic Horsman, Katherine L. Brown, William J. Munro +1
Efficient generation of cluster states is crucial for engineering large-scale measurement-based quantum computers. Hybrid matter-optical systems offer a robust, scalable path to th…
Using Quantum Computers for Quantum Simulation
Katherine L Brown, William J Munro, Vivien M Kendon
Numerical simulation of quantum systems is crucial to further our understanding of natural phenomena. Many systems of key interest and importance, in areas such as superconducting…
Universal Continuous Variable Quantum Computation in the Micromaser
Rob C. Wagner, Mark S. Everitt, Viv M. Kendon +1
We present universal continuous variable quantum computation (CVQC) in the micromaser. With a brief history as motivation we present the background theory and define universal CVQC…
Encoding many qubits in a rotor
Amir Kalev, Philippe Raynal, Jun Suzuki +1
We propose a scheme for encoding many qubits in a single rotor, that is, a continuous and periodic degree of freedom. A key feature of this scheme is its ability to manipulate and…
Mott transitions of exciton-polaritons and indirect excitons in a periodic potential
Tim Byrnes, Patrik Recher, Yoshihisa Yamamoto
We derive an effective Bose-Hubbard model that predicts a phase transition from Bose-Einstein condensate to Mott insulator in two different systems subject to applied periodic pote…
The complexity of UNO
Erik D. Demaine, Martin L. Demaine, Nicholas J. A. Harvey +3
This paper investigates the popular card game UNO from the viewpoint of algorithmic combinatorial game theory. We define simple and concise mathematical models for the game, includ…
Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
Jiun-Haw Chu, James G. Analytis, Kristiaan De Greve +4
Electrical resistivity measurements of detwinned single crystals of the representative iron arsenide Ba(FeCo)As reveal a dramatic in-plane anisotropy associated…