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19932026
most citedGaussian Quantum Information

3.7k citations

Showing 2017 · quant-phShow all

52 papers · 2 filters

quant-ph2017★ 56 cited

NV-centers in Nanodiamonds: How good they are

Taras Plakhotnik, Haroon Aman

This paper presents a method for determination of the size distribution for diamond nanocrystals containing luminescent nitrogen-vacancy (NV) centers using the luminescence intensi…

quant-ph2017★ 3 cited

Mesoscopic dynamical differences from quantum state preparation in a Bose-Hubbard trimer

M. K. Olsen, T. W. Neely, A. S. Bradley

Conventional wisdom is that quantum effects will tend to disappear as the number of quanta in a system increases, and the evolution of a system will become closer to that described…

quant-ph2017★ 27 cited

Quantum error-correction of continuous-variable states with realistic resources

Josephine Dias, Timothy C Ralph

Gaussian noise induced by loss on Gaussian states may be corrected by distributing EPR entanglement through the loss channel, purifying the entanglement using a noiseless linear am…

quant-ph2017★ 43 cited

Experimental entanglement of temporal order

Giulia Rubino, Lee A. Rozema, Francesco Massa +4

The study of causal relations has recently been applied to the quantum realm, leading to the discovery that not all physical processes have a definite causal structure. While indef…

quant-ph2017★ 22 cited

Quantum correlations across two octaves from combined up and down conversion

Jingyan Li, M. K. Olsen

We propose and analyse a cascaded optical parametric system which involves three interacting modes across two octaves of frequency difference. Our system, combining degenerate opti…

quant-ph2017★ 35 cited

Displacemon electromechanics: how to detect quantum interference in a nanomechanical resonator

Kiran E. Khosla, Michael R. Vanner, Natalia Ares +1

We introduce the `displacemon' electromechanical architecture that comprises a vibrating nanobeam, e.g. a carbon nanotube, flux coupled to a superconducting qubit. This platform ca…

quant-ph2017★ 105 cited

Qubit models of weak continuous measurements

Jonathan A. Gross, Carlton M. Caves, Gerard J. Milburn +1

In this paper we approach the theory of continuous measurements and the associated unconditional and conditional (stochastic) master equations from the perspective of quantum infor…

quant-ph2017★ 34 cited

A Unifying Framework for Spatial and Temporal Quantum Correlations

Fabio Costa, Martin Ringbauer, Michael E. Goggin +2

Measurements on a single quantum system at different times reveal rich non-classical correlations similar to those observed in spatially separated multi-partite systems. Here we in…

quant-ph2017★ 36 cited

Realization of a quantum random generator certified with the Kochen-Specker theorem

Anatoly Kulikov, Markus Jerger, Anton Potočnik +2

Random numbers are required for a variety of applications from secure communications to Monte-Carlo simulation. Yet randomness is an asymptotic property and no output string genera…

quant-ph2017★ 18 cited

Passive quantum error correction of linear optics networks through error averaging

Ryan J. Marshman, Austin P. Lund, Peter P. Rohde +1

We propose and investigate a method of error detection and noise correction for bosonic linear networks using a method of unitary averaging. The proposed error averaging does not r…

quant-ph2017★ 59 cited

Breaking time-reversal symmetry with a superconducting flux capacitor

Clemens Müller, Shengwei Guan, Nicolas Vogt +2

We present the design of a passive, on-chip microwave circulator based on a ring of superconducting tunnel junctions. We investigate two distinct physical realisations, based on ei…

quant-ph2017★ 3 cited

Optomechanical state reconstruction and nonclassicality verification beyond the resolved-sideband regime

Farid Shahandeh, Martin Ringbauer

Quantum optomechanics uses optical means to generate and manipulate quantum states of motion of mechanical resonators. This provides an intriguing platform for the study of fundame…

quant-ph2017★ 14 cited

Genuinely Multipartite Noncausality

Alastair A. Abbott, Julian Wechs, Fabio Costa +1

The study of correlations with no definite causal order has revealed a rich structure emerging when more than two parties are involved. This motivates the consideration of multipar…

quant-ph2017★ 41 cited

Fault-tolerant quantum computation with non-deterministic entangling gates

James M. Auger, Hussain Anwar, Mercedes Gimeno-Segovia +2

Performing entangling gates between physical qubits is necessary for building a large-scale universal quantum computer, but in some physical implementations - for example, those th…

quant-ph2017★ 33 cited

Nonreciprocal Atomic Scattering: A saturable, quantum Yagi-Uda antenna

Clemens Müller, Joshua Combes, Andrés Rosario Hamann +2

Recent theoretical studies of a pair of atoms in a 1D waveguide find that the system responds asymmetrically to incident fields from opposing directions at low powers. Since there…

quant-ph2017★ 25 cited

Phonon antibunching effect in coupled nonlinear micro/nanomechanical resonator at finite temperature

Shengguo Guan, Warwick Bowen, Cunjin Liu +1

In this study, we investigate the phonon antibunching effect in a coupled nonlinear micro/nanoelectromechanical system (MEMS/NEMS) resonator at a finite temperature. In the weak dr…

quant-ph2017★ 122 cited

Bell's Theorem for Temporal Order

Magdalena Zych, Fabio Costa, Igor Pikovski +1

Time has a fundamentally different character in quantum mechanics and in general relativity. In quantum theory events unfold in a fixed time order while in general relativity tempo…

quant-ph2017★ 30 cited

Causation does not explain contextuality

Sally Shrapnel, Fabio Costa

Realist interpretations of quantum mechanics presuppose the existence of elements of reality that are independent of the actions used to reveal them. Such a view is challenged by s…

quant-ph2017★ 16 cited

Tripartite correlations over two octaves from cascaded harmonic generation

M. K. Olsen

We analyse the output quantum tripartite correlations from an intracavity nonlinear optical system which uses cascaded nonlinearities to produce both second and fourth harmonic out…

quant-ph2017★ 852 cited

A Spin Entanglement Witness for Quantum Gravity

Sougato Bose, Anupam Mazumdar, Gavin W. Morley +7

Understanding gravity in the framework of quantum mechanics is one of the great challenges in modern physics. Along this line, a prime question is to find whether gravity is a quan…

quant-ph2017★ 31 cited

Entanglement and asymmetric steering over two octaves of frequency difference with cascaded harmonic generation

M. K Olsen

We analyse a nonlinear optical system which uses cascaded nonlinearities to produce both second and fourth harmonic outputs from an input field at the fundamental frequency. Using…

quant-ph2017★ 2 cited

Quantum behaviour of pumped and damped triangular Bose Hubbard systems

C. V. Chianca, M. K. Olsen

We propose and analyse analogs of optical cavities for atoms using three-well Bose-Hubbard models with pumping and losses. We consider triangular configurations. With one well pump…

quant-ph2017★ 80 cited

Certification and Quantification of Multilevel Quantum Coherence

Martin Ringbauer, Thomas R. Bromley, Marco Cianciaruso +6

Quantum coherence, present whenever a quantum system exists in a superposition of multiple classically distinct states, marks one of the fundamental departures from classical physi…

quant-ph2017★ 39 cited

Controlled asymmetry of EPR steering with an injected non-degenerate optical parametric oscillator

M. K. Olsen

We propose and analyse a nonlinear optical apparatus in which the direction of asymmetric steering is controllable within the apparatus, rather than by adding noise to measurements…