10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of TsukubaJP1.6k papers
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- University of Illinois Urbana-ChampaignUS1.6k papers
- University of Wisconsin–MadisonUS1.6k papers
- Michigan State UniversityUS1.6k papers
- Waseda UniversityJP1.6k papers
- University of ChicagoUS1.6k papers
- Centre National de la Recherche ScientifiqueFR1.5k papers
- The Ohio State UniversityUS1.5k papers
- Lawrence Berkeley National LaboratoryUS1.5k papers
- Yale UniversityUS1.5k papers
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20 papers · 2 filters
Optical loss and lasing characteristics of high-quality-factor AlGaAs microdisk resonators with embedded quantum dots
Kartik Srinivasan, Matthew Borselli, Thomas J. Johnson +4
Optical characterization of AlGaAs microdisk resonant cavities with a quantum dot active region is presented. Direct passive measurement of the optical loss within AlGaAs microdisk…
Quantum state reconstruction via continuous measurement
Andrew Silberfarb, Poul S. Jessen, Ivan H. Deutsch
We present a new procedure for quantum state reconstruction based on weak continuous measurement of an ensemble average. By applying controlled evolution to the initial state new i…
Entanglement vs. the quantum-to-classical transition
Shohini Ghose, Paul M. Alsing, Barry C. Sanders +1
We analyze the quantum-to-classical transition (QCT) for coupled bipartite quantum systems for which the position of one of the two subsystems is continuously monitored. We obtain…
Fidelity of Gaussian channels
Carlton M. Caves, Krzysztof Wodkiewicz
A noisy Gaussian channel is defined as a channel in which an input field mode is subjected to random Gaussian displacements in phase space. We introduce the quantum fidelity of a G…
Equiangular Spherical Codes in Quantum Cryptography
Joseph M. Renes
Quantum key distribution protocols based on equiangular spherical codes are introduced and their behavior under the intercept/resend attack investigated. Such protocols offer a gre…
Properties of the frequency operator do not imply the quantum probability postulate
Carlton M. Caves, Ruediger Schack
We review the properties of the frequency operator for an infinite number of systems and disprove claims in the literature that the quantum probability postulate can be derived fro…
Unconditional Security of Three State Quantum Key Distribution Protocols
J. -C. Boileau, K. Tamaki, J. Batuwantudawe +2
Quantum key distribution (QKD) protocols are cryptographic techniques with security based only on the laws of quantum mechanics. Two prominent QKD schemes are the BB84 and B92 prot…
Witnessing Entanglement with Second-Order Interference
Magdalena Stobińska, Krzysztof Wódkiewicz
Second-order interference and Hanbury-Brown and Twiss type experiments can provide an operational framework for the construction of witness operators that can test classical and no…
Depolarization channels with zero-bandwidth noises
Andrzej Dragan, Krzysztow Wódkiewicz
A simple model describing depolarization channels with zero-bandwidth environment is presented and exactly solved. The environment is modelled by Lorentzian, telegraphic and Gaussi…
Violation of Bell's inequality for continuous variables
L. Praxmeyer, B. -G. Englert, K. Wodkiewicz
We construct a wide class of bounded continuous variables observables that lead to violations of Bell inequalities for the EPR state and give an intuitive Wigner function explanati…
Probabilities of failure for quantum error correction
A. J. Scott
We investigate the performance of a quantum error-correcting code when pushed beyond its intended capacity to protect information against errors, presenting formulae for the probab…
Generalized Pseudopotentials for Higher Partial Wave Scattering
Rene Stock, Andrew Silberfarb, Eric L. Bolda +1
We derive a generalized zero-range pseudopotential applicable to all partial wave solutions to the Schroedinger equation based on a delta-shell potential in the limit that the shel…
Entanglement dynamics in chaotic systems
Shohini Ghose, Barry C. Sanders
We study quantum chaos for systems with more than one degree of freedom, for which we present an analysis of the dynamics of entanglement. Our analysis explains the main features o…
Minimal Informationally Complete Measurements for Pure States
Steven T. Flammia, Andrew Silberfarb, Carlton M. Caves
We consider measurements, described by a positive-operator-valued measure (POVM), whose outcome probabilities determine an arbitrary pure state of a D-dimensional quantum system. W…
Continuous Weak Measurement and Nonlinear Dynamics in a Cold Spin Ensemble
Greg A. Smith, Souma Chaudhury, Andrew Silberfarb +2
A weak continuous quantum measurement of an atomic spin ensemble can be implemented via Faraday rotation of an off-resonance probe beam, and may be used to create and probe nonclas…
Complementarity relations for multi-qubit systems
Tracey E. Tessier
We derive two complementarity relations that constrain the individual and bipartite properties that may simultaneously exist in a multi-qubit system. The first expression, valid fo…
Spherical Code Key Distribution Protocols for Qubits
Joseph M. Renes
Recently spherical codes were introduced as potentially more capable ensembles for quantum key distribution. Here we develop specific key creation protocols for the two qubit-based…
Bloch Equations and Completely Positive Maps
Sonja Daffer, Krzysztof Wodkiewicz, John K. McIver
The phenomenological dissipation of the Bloch equations is reexamined in the context of completely positive maps. Such maps occur if the dissipation arises from a reduction of a un…
Simplified derivation of the Hawking-Unruh temperature for an accelerated observer in vacuum
Paul M. Alsing, Peter W. Milonni
A detector undergoing uniform acceleration in a vacuum field responds just as though it were immersed in thermal radiation of temperature . A simple, intuitive…
Classical phase-space descriptions of continuous-variable teleportation
Carlton M. Caves, Krzysztof Wodkiewicz
The nonnegative Wigner function of all quantum states involved in teleportation of Gaussian states using the standard continuous-variable teleportation protocol means that there is…