output
19952026
most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

Showing 2013 · quant-phShow all

14 papers · 2 filters

quant-ph2013★ 27 cited

Quantum Optical State Comparison Amplifier

Electra Eleftheriadou, Stephen M. Barnett, John Jeffers

It is a fundamental principle of quantum theory that an unknown state cannot be copied or, as a consequence, an unknown optical signal cannot be amplified deterministically and per…

quant-ph2013★ 2 cited

Entangling unitary gates on distant qubits with ancilla feedback

Kerem Halil Shah, Daniel K. L. Oi

By using an ancilla qubit as a mediator, two distant qubits can undergo a non-local entangling unitary operation. This is desirable for when attempting to scale up or distribute qu…

quant-ph2013★ 145 cited

Realization of Quantum Digital Signatures without the requirement of quantum memory

Robert J. Collins, Ross J. Donaldson, Vedran Dunjko +5

Digital signatures are widely used to provide security for electronic communications, for example in financial transactions and electronic mail. Currently used classical digital si…

quant-ph2013★ 141 cited

Generic emergence of classical features in quantum Darwinism

Fernando G. S. L. Brandao, Marco Piani, Pawel Horodecki

Quantum Darwinism explains the emergence of classical reality from the underlying quantum reality by the fact that a quantum system is observed indirectly, by looking at parts of i…

quant-ph2013★ 17 cited

Role of correlations in the two-body-marginal problem

Lin Chen, Oleg Gittsovich, Kavan Modi +1

Quantum properties of correlations have a key role in disparate fields of physics, from quantum information processing, to quantum foundations, to strongly correlated systems. We t…

quant-ph2013★ 1.2k cited

Enhancing the sensitivity of the LIGO gravitational wave detector by using squeezed states of light

The LIGO Scientific Collaboration

Nearly a century after Einstein first predicted the existence of gravitational waves, a global network of earth-based gravitational wave observatories is seeking to directly detect…

quant-ph2013★ 19 cited

Tailored two-photon correlation and fair-sampling: a cautionary tale

Jacquiline Romero, Daniel Giovannini, Daniel Tasca +2

We demonstrate an experimental test of the Clauser-Horne-Shimony-Holt (CHSH) Bell inequality which seemingly exhibits correlations beyond the limits imposed by quantum mechanics. I…

quant-ph2013★ 54 cited

Pivoting makes the ZX-calculus complete for real stabilizers

Ross Duncan, Simon Perdrix

We show that pivoting property of graph states cannot be derived from the axioms of the ZX-calculus, and that pivoting does not imply local complementation of graph states. Therefo…

quant-ph2013★ 156 cited

Experimental demonstration of quantum digital signatures using phase-encoded coherent states of light

Patrick J. Clarke, Robert J. Collins, Vedran Dunjko +3

Digital signatures are frequently used in data transfer to prevent impersonation, repudiation and message tampering. Currently used classical digital signature schemes rely on publ…

quant-ph2013★ 43 cited

Verifying the Steane code with Quantomatic

Ross Duncan, Maxime Lucas

In this paper we give a partially mechanized proof of the correctness of Steane's 7-qubit error correcting code, using the tool Quantomatic. To the best of our knowledge, this repr…

quant-ph2013★ 38 cited

Testing the effects of gravity and motion on quantum entanglement in space-based experiments

David Edward Bruschi, Carlos Sabín, Angela White +3

We propose an experiment to test the effects of gravity and acceleration on quantum entanglement in space-based setups. We show that the entanglement between excitations of two Bos…

quant-ph2013★ 67 cited

Security of high-dimensional quantum key distribution protocols using Franson interferometers

Thomas Brougham, Stephen M. Barnett, Kevin T. McCusker +2

Franson interferometers are increasingly being proposed as a means of securing high-dimensional energy-time entanglement-based quantum key distribution (QKD) systems. Heuristic arg…

quant-ph2013★ 5 cited

Entanglement of one-magnon Schur-Weyl states

Pawel Jakubczyk, Yevgen Kravets, Dorota Jakubczyk

We investigate the entanglement properties of symmetry states of the Schur-Weyl duality. Our approach based on reduced two-qubit density matrices, and concurrence as the measure of…

quant-ph2013★ 6 cited

Ancilla Driven Quantum Computation with arbitrary entangling strength

Kerem Halil Shah, Daniel Kuan Li Oi

We extend the model of Ancilla Driven Quantum Computation (ADQC) by considering gates with arbitrary entangling power. By giving up stepwise determinism, universal QC can still be…