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most citedQuantum secret sharing

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Showing 2010Show all

22 papers · 1 filter

cond-mat.mes-hall2010★ 14 cited

Spin-to-Charge Conversion of Mesoscopic Spin Currents

Peter Stano, Philippe Jacquod

Recent theoretical investigations have shown that spin currents can be generated by passing electric currents through spin-orbit coupled mesoscopic systems. Measuring these spin cu…

cond-mat.str-el2010★ 45 cited

Suppression of finite-size effects in one-dimensional correlated systems

A. Gendiar, M. Daniska, Y. Lee +1

We investigate the effect of a non-uniform deformation applied to one-dimensional (1D) quantum systems, where the local energy scale is proportional to de…

cond-mat.mtrl-sci2010★ 8 cited

Ising instability of a Holstein phonon mode in graphene

K. Ziegler, E. Kogan, E. Majernikova +1

We study the thermal distribution of phonons in a graphene sheet. Due to the two electronic bands there are two out-of-plane phonon modes with respect to the two sublattices. One o…

quant-ph2010★ 27 cited

Experimentally implementable criteria revealing substructures of genuine multipartite entanglement

Marcus Huber, Hans Schimpf, Andreas Gabriel +3

We present a general framework that reveals substructures of genuine multipartite entanglement. Via simple inequalities it is possible to discriminate different sets of multipartit…

quant-ph2010★ 24 cited

Lorentz invariance of entanglement classes in multipartite systems

Marcus Huber, Nicolai Friis, Andreas Gabriel +2

We analyze multipartite entanglement in systems of spin-1/2 particles from a relativistic perspective. General conditions which have to be met for any classification of multipartit…

nucl-ex2010★ 109 cited

Early onset of ground-state deformation in the neutron-deficient polonium isotopes

T. E. Cocolios, W. Dexters, M. D. Seliverstov +28

In-source resonant ionization laser spectroscopy of the even- polonium isotopes Po has been performed using the to ($λ=843.…

quant-ph2010★ 4 cited

Optimal unambiguous comparison of two unknown squeezed vacua

Stefano Olivares, Michal Sedlak, Peter Rapcan +2

We propose a scheme for unambiguous state comparison (USC) of two unknown squeezed vacuum states of an electromagnetic field. Our setup is based on linear optical elements and phot…

quant-ph2010★ 15 cited

Open system dynamics of simple collision models

Mario Ziman, Vladimír Bužek

A simple collision model is employed to introduce elementary concepts of open system dynamics of quantum systems. In particular, within the framework of collision models we introdu…

gr-qc2010★ 4 cited

The Axisymmetric Case for the Post-Newtonian Dedekind Ellipsoids

Norman Gürlebeck, David Petroff

We consider the post-Newtonian approximation for the Dedekind ellipsoids in the case of axisymmetry. The approach taken by Chandrasekhar & Elbert (1974, 1978) excludes the possibil…

hep-ph2010★ 73 cited

Quark model description of the tetraquark state X(3872) in a relativistic constituent quark model with infrared confinement

Stanislav Dubnicka, Anna Z. Dubnickova, Mikhail A. Ivanov +1

We explore the consequences of treating the X(3872) meson as a tetraquark bound state. As dynamical framework we employ a relativistic constituent quark model which includes infrar…

nucl-ex2010★ 50 cited

The 270 MeV deuteron beam polarimeter at the Nuclotron Internal Target Station

P. K. Kurilkin, V. P. Ladygin, T. Uesaka +24

A deuteron beam polarimeter has been constructed at the Internal Target Station at the Nuclotron of JINR. The polarimeter is based on spin-asymmetry measurements in the d-p elastic…

cond-mat.stat-mech2010★ 22 cited

Phase Transition of the Ising model on a Hyperbolic Lattice

Takatsugu Iharagi, Andrej Gendiar, Hiroshi Ueda +1

The matrix product structure is considered on a regular lattice in the hyperbolic plane. The phase transition of the Ising model is observed on the hyperbolic lattice by m…

quant-ph2010★ 9 cited

Approximating incompatible von Neumann measurements simultaneously

Teiko Heinosaari, Maria Anastasia Jivulescu, Daniel Reitzner +1

We study the problem of performing orthogonal qubit measurements simultaneously. Since these measurements are incompatible, one has to accept additional imprecision. An optimal joi…

cond-mat.mes-hall2010★ 15 cited

Spin-dependent tunneling into an empty lateral quantum dot

Peter Stano, Philippe Jacquod

Motivated by the recent experiments of Amasha {\it et al.} [Phys. Rev. B {\bf 78}, 041306(R) (2008)], we investigate single electron tunneling into an empty quantum dot in presence…

quant-ph2010★ 29 cited

Simulation of Classical Thermal States on a Quantum Computer: A Transfer Matrix Approach

Man-Hong Yung, Daniel Nagaj, James D. Whitfield +1

We present a hybrid quantum-classical algorithm to simulate thermal states of a classical Hamiltonians on a quantum computer. Our scheme employs a sequence of locally controlled ro…

hep-th2010★ 8 cited

Algebraic solutions in Open String Field Theory - a lightning review

Martin Schnabl

In this short talk we review basic ideas of string field theory with the emphasis on the recent developments. We show how without too much technicality one can look for analytic so…

cond-mat.mes-hall2010★ 33 cited

Spin-orbit coupling and anisotropic exchange in two-electron double quantum dots

Fabio Baruffa, Peter Stano, Jaroslav Fabian

The influence of the spin-orbit interactions on the energy spectrum of two-electron laterally coupled quantum dots is investigated. The effective Hamiltonian for a spin qubit pair…

quant-ph2010★ 21 cited

Single-shot discrimination of quantum unitary processes

Mario Ziman, Michal Sedlák

We formulate minimum-error and unambiguous discrimination problems for quantum processes in the language of process positive operator valued measures (PPOVM). In this framework we…

quant-ph2010★ 350 cited

Quantum-state preparation with universal gate decompositions

Martin Plesch, Časlav Brukner

In quantum computation every unitary operation can be decomposed into quantum circuits-a series of single-qubit rotations and a single type entangling two-qubit gates, such as cont…

hep-lat2010★ 11 cited

Coulomb Confinement from the Yang-Mills Vacuum State in 2+1 Dimensions

J. Greensite, S. Olejnik

The Coulomb-gauge ghost propagator, and the color-Coulomb potential, are computed in an ensemble of configurations derived from our recently proposed Yang-Mills vacuum wavefunction…

quant-ph2010★ 26 cited

Universal 2-local Hamiltonian Quantum Computing

Daniel Nagaj

We present a Hamiltonian quantum computation scheme universal for quantum computation (BQP). Our Hamiltonian is a sum of a polynomial number (in the number of gates L in the quantu…

quant-ph2010★ 37 cited

Unfrustrated Qudit Chains and their Ground States

Ramis Movassagh, Edward Farhi, Jeffrey Goldstone +3

We investigate chains of 'd' dimensional quantum spins (qudits) on a line with generic nearest neighbor interactions without translational invariance. We find the conditions under…