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Showing 2014 · quant-phShow all

16 papers · 2 filters

quant-ph2014★ 22 cited

Control of molecular dynamics with zero-area fields: Application to molecular orientation and photofragmentation

D. Sugny, Stéphane Vranckx, Mamadou Ndong +3

The constraint of time-integrated zero-area on the laser field is a fundamental, both theoretical and experimental requirement in the control of molecular dynamics. By using techni…

quant-ph2014★ 9 cited

Interconversion of pure Gaussian states using non-Gaussian operations

Michael G. Jabbour, Raúl García-Patrón, Nicolas J. Cerf

We analyze the conditions under which local operations and classical communication enable entanglement transformations within the set of bipartite pure Gaussian states. A set of ne…

quant-ph2014

A universal adiabatic quantum query algorithm

Mathieu Brandeho, Jérémie Roland

Quantum query complexity is known to be characterized by the so-called quantum adversary bound. While this result has been proved in the standard discrete-time model of quantum com…

quant-ph2014★ 9 cited

Entropy production in Gaussian bosonic transformations using the replica method: application to quantum optics

C. N. Gagatsos, A. I. Karanikas, G. Kordas +1

In spite of their simple description in terms of rotations or symplectic transformations in phase space, quadratic Hamiltonians such as those modeling the most common Gaussian oper…

quant-ph2014★ 4 cited

External constraints on optimal control strategies in molecular orientation and photofragmentation: Role of zero-area fields

D. Sugny, S. Vranckx, M. Ndong +2

We propose a new formulation of optimal and local control algorithms which enforces the constraint of time-integrated zero-area on the control field. The fulfillment of this requir…

quant-ph2014★ 53 cited

Operational quantum theory without predefined time

Ognyan Oreshkov, Nicolas J. Cerf

The standard formulation of quantum theory assumes a predefined notion of time. This is a major obstacle in the search for a quantum theory of gravity, where the causal structure o…

quant-ph2014★ 19 cited

Many-Measurements or Many-Worlds? A Dialogue

Diederik Aerts, Massimiliano Sassoli de Bianchi

Many advocates of the Everettian interpretation consider that theirs is the only approach to take quantum mechanics really seriously, and that this approach allows to deduce a fant…

quant-ph2014★ 9 cited

Tight asymptotic key rate for the BB84 protocol with local randomisation and device imprecisions

Erik Woodhead

Local randomisation is a preprocessing procedure in which one of the legitimate parties of a quantum key distribution (QKD) scheme adds noise to their version of the key and was fo…

quant-ph2014★ 25 cited

Analytical stable Gaussian soliton supported by a parity-time-symmetric potential with power-law nonlinearity

Bikashkali Midya

We address the existence and stability of spatial localized modes supported by a parity-time-symmetric complex potential in the presence of power-law nonlinearity. The analytical e…

quant-ph2014★ 45 cited

Heralded noiseless amplification and attenuation of non-gaussian states of light

C. N. Gagatsos, J. Fiurasek, A. Zavatta +2

We examine the behavior of non-Gaussian states of light under the action of probabilistic noiseless amplification and attenuation. Surprisingly, we find that the mean field amplitu…

quant-ph2014★ 22 cited

Information and communication in polygon theories

Serge Massar, Manas K. Patra

Generalized probabilistic theories (GPT) provide a framework in which one can formulate physical theories that includes classical and quantum theories, but also many other alternat…

quant-ph2014★ 30 cited

Creating and manipulating entangled optical qubits in the frequency domain

Laurent Olislager, Erik Woodhead, Kien Phan Huy +3

Radio-frequency phase modulation of frequency entangled photons leads to a two-photon interference pattern in the frequency domain. In recent experiments, the pattern was measured…

quant-ph2014★ 35 cited

All CHSH polytopes

Stefano Pironio

The correlations that admit a local hidden-variable model are described by a family of polytopes, whose facets are the Bell inequalities. The CHSH inequality is the simplest such B…

quant-ph2014★ 18 cited

Comment on `On the Quantum Theory of Molecules' [J. Chem.Phys. {\bf 137}, 22A544 (2012)]

Brian T Sutcliffe, R Guy Woolley

In our previous paper [J. Chem.Phys. {\bf 137}, 22A544 (2012)] we argued that the Born-Oppenheimer approximation could not be based on an exact transformation of the molecular Schr…

quant-ph2014★ 7 cited

Strong converse for the classical capacity of optical quantum communication channels

Bhaskar Roy Bardhan, Raul Garcia-Patron, Mark M. Wilde +1

We establish the classical capacity of optical quantum channels as a sharp transition between two regimes---one which is an error-free regime for communication rates below the capa…

quant-ph2014★ 19 cited

Single- and coupled-channel radial inverse scattering with supersymmetric transformations

Daniel Baye, Jean-Marc Sparenberg, Andrey M Pupasov-Maksimov +1

The present status of the coupled-channel inverse-scattering method with supersymmetric transformations is reviewed. We first revisit in a pedagogical way the single-channel case,…