Showing 2018 · quant-phShow all

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quant-ph2018★ 20 cited

Self-testing with finite statistics enabling the certification of a quantum network link

Jean-Daniel Bancal, Kai Redeker, Pavel Sekatski +2

Self-testing is a method to certify devices from the result of a Bell test. Although examples of noise tolerant self-testing are known, it is not clear how to deal efficiently with…

quant-ph2018★ 27 cited

Nonadiabatic dynamics and geometric phase of an ultrafast rotating electron spin

Xing-Yan Chen, Tongcang Li, Zhang-qi Yin

The spin in a rotating frame has attracted a lot of attentions recently, as it deeply relates to both fundamental physics such as pseudo-magnetic field and geometric phase, and app…

quant-ph2018★ 191 cited

A Hybrid Solution Method for the Capacitated Vehicle Routing Problem Using a Quantum Annealer

Sebastian Feld, Christoph Roch, Thomas Gabor +5

The Capacitated Vehicle Routing Problem (CVRP) is an NP-optimization problem (NPO) that has been of great interest for decades for both, science and industry. The CVRP is a variant…

quant-ph2018★ 16 cited

Nonreciprocal Quantum Transport at Junctions of Structured Leads

Eduardo Mascarenhas, François Damanet, Stuart Flannigan +4

We propose and analyze a mechanism for rectification of spin transport through a small junction between two spin baths or leads. For interacting baths we show that transport is con…

quant-ph2018★ 9 cited

Bohmian Trajectories for Hamiltonians with Interior-Boundary Conditions

Detlef Dürr, Sheldon Goldstein, Stefan Teufel +2

Recently, there has been progress in developing interior-boundary conditions (IBCs) as a technique of avoiding the problem of ultraviolet divergence in non-relativistic quantum fie…

quant-ph2018★ 10 cited

Higher dimensional entanglement without correlations

Waldemar Klobus, Wieslaw Laskowski, Tomasz Paterek +2

It has been demonstrated both theoretically and experimentally that genuine multipartite entanglement between qubits can exist even in the absence of multipartite correlations. Her…

quant-ph2018★ 2 cited

Measurement-Disturbance Tradeoff Outperforming Optimal Cloning

Lukas Knips, Jan Dziewior, Anna-Lena K. Hashagen +3

One of the characteristic features of quantum mechanics is that every measurement that extracts information about a general quantum system necessarily causes an unavoidable disturb…

quant-ph2018★ 14 cited

Quantum Motion on Shape Space and the Gauge Dependent Emergence of Dynamics and Probability in Absolute Space and Time

Detlef Dürr, Sheldon Goldstein, Nino Zanghí

Relational formulations of classical mechanics and gravity have been developed by Julian Barbour and collaborators. Crucial to these formulations is the notion of shape space. We i…

quant-ph2018★ 13 cited

Protocol for unambiguous quantum state discrimination using quantum coherence

Sunho Kim, Longsuo Li, Asutosh Kumar +5

Roa et al. showed that quantum state discrimination between two nonorthogonal quantum states does not require quantum entanglement but quantum dissonance only. We find that quantum…

quant-ph2018★ 24 cited

Finding Critical States of Enhanced Memory Capacity in Attractive Cold Bosons

Gia Dvali, Marco Michel, Sebastian Zell

We discuss a class of quantum theories which exhibit a sharply increased memory storage capacity due to emergent gapless degrees of freedom. Their realization, both theoretical and…

quant-ph2018★ 293 cited

Challenging local realism with human choices

The BIG Bell Test Collaboration, C. Abellán, A. Acín +105

A Bell test is a randomized trial that compares experimental observations against the philosophical worldview of local realism. A Bell test requires spatially distributed entanglem…

quant-ph2018★ 58 cited

Universality of local weak interactions and its application for interferometric alignment

Jan Dziewior, Lukas Knips, Demitry Farfurnik +7

The modification of the effect of interactions of a particle as a function of its pre- and postselected states is analyzed theoretically and experimentally. The universality proper…

quant-ph2018★ 65 cited

Arrival Time Distributions of Spin-1/2 Particles

Siddhant Das, Detlef Dürr

The arrival time statistics of spin-1/2 particles governed by Pauli's equation, and defined by their Bohmian trajectories, show unexpected and very well articulated features. Compa…

quant-ph2018★ 8 cited

Dynamics of multiple atoms in one-dimensional fields

Carlo Cascio, Jad C. Halimeh, Ian P. McCulloch +2

We analyze the dynamics of a set of two-level atoms coupled to the electromagnetic environment within a waveguide. This problem is often tackled by assuming a weak coupling between…