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Showing 2019 · quant-phShow all

19 papers · 2 filters

quant-ph2019★ 112 cited

Correlating photons using the collective nonlinear response of atoms weakly coupled to an optical mode

Adarsh S. Prasad, Jakob Hinney, Sahand Mahmoodian +6

Photons in a nonlinear medium can repel or attract each other, resulting in a strongly correlated quantum many-body system. Typically, such strongly correlated states of light aris…

quant-ph2019★ 6 cited

Polaritonic Contribution to the Casimir Energy between two Graphene Layers

Christoph H. Egerland, Kurt Busch, Francesco Intravaia

We study the role of surface polaritons in the zero-temperature Casimir effect between two graphene layers that are described by the Dirac model. A parametric approach allows us to…

quant-ph2019★ 15 cited

Nonadditive Enhancement of Nonequilibrium Atom-Surface Interactions

Daniel Reiche, Kurt Busch, Francesco Intravaia

The motion-induced drag force acting on a particle moving parallel to an arrangement of objects is analyzed. Particular focus is placed on the nonequilibrium statistics of the…

quant-ph2019★ 1 cited

Response to "Retraction Note: Can Two-Way Direct Communication Protocols Be Considered Secure?"

Mladen Pavicic

This is a response to "Retraction Note: Can Two-Way Direct Co mmunication Protocols Be Considered Secure? Mladen Pavicic," Nanoscale Research Letters,14, 242 (2019). The "anonymise…

quant-ph2019★ 39 cited

Optimal estimation with quantum optomechanical systems in the nonlinear regime

Fabienne Schneiter, Sofia Qvarfort, Alessio Serafini +4

We study the fundamental bounds on precision measurements of parameters contained in a time-dependent nonlinear optomechanical Hamiltonian, which includes the nonlinear light-matte…

quant-ph2019★ 24 cited

Mode-independent quantum entanglement for light

Jan Sperling, Armando Perez-Leija, Kurt Busch +1

We address the problem of the persistence of entanglement of quantum light under mode transformations, where orthogonal modes define the parties between which quantum correlations…

quant-ph2019★ 66 cited

Wavelength-scale errors in optical localization due to spin-orbit coupling of light

Gabriel Araneda, Stefan Walser, Yves Colombe +4

The precise determination of the position of point-like emitters and scatterers using far-field optical imaging techniques is of utmost importance for a wide range of applications…

quant-ph2019★ 28 cited

Time-evolution of nonlinear optomechanical systems: Interplay of mechanical squeezing and non-Gaussianity

Sofia Qvarfort, Alessio Serafini, André Xuereb +3

We solve the time evolution of a nonlinear optomechanical Hamiltonian with arbitrary time-dependent mechanical displacement, mechanical single-mode squeezing and a time-dependent o…

quant-ph2019★ 52 cited

Ultra-broadband SPDC for spectrally far separated photon pairs

Aron Vanselow, Paul Kaufmann, Helen M. Chrzanowski +1

Generating photon pairs via spontaneous parametric down-conversion (SPDC) in nonlinear crystals is important for a wide range of quantum optics experiments with spectral properties…

quant-ph2019★ 8 cited

Versatile Super-Sensitive Metrology Using Induced Coherence

Nathaniel R. Miller, Sven Ramelow, William N. Plick

We theoretically analyze the phase sensitivity of the Induced-Coherence (Mandel-Type) Interferometer, including the case where the sensitivity is "boosted" into the bright input re…

quant-ph2019★ 165 cited

One-way quantum repeater based on near-deterministic photon-emitter interfaces

Johannes Borregaard, Hannes Pichler, Tim Schöder +3

We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmissi…

quant-ph2019★ 39 cited

Observation of Multimode Strong Coupling of Cold Atoms to a 30-m Long Optical Resonator

Aisling Johnson, Martin Blaha, Alexander E. Ulanov +3

We report on the observation of multimode strong coupling of a small ensemble of atoms interacting with the field of a 30-m long fiber resonator containing a nanofiber section. The…

quant-ph2019★ 3 cited

Vector Generation of Contextual Sets

Mladen Pavicic, Norman D. Megill

As quantum contextuality proves to be a necessary resource for universal quantum computation, we present a general method for vector generation of Kochen-Specker (KS) contextual se…

quant-ph2019★ 18 cited

Vector Generation of Quantum Contextual Sets in Even Dimensional Hilbert Spaces

Mladen Pavicic, Norman D. Megill

Recently, quantum contextuality has been proved to be the source of quantum computation's power. That, together with multiple recent contextual experiments, prompts improving the m…

quant-ph2019★ 10 cited

Automated generation of Kochen-Specker sets

Mladen Pavicic, Mordecai Waegell, Norman D. Megill +1

Quantum contextuality turns out to be a necessary resource for universal quantum computation and also has applications in quantum communication. Thus it becomes important to genera…

quant-ph2019★ 21 cited

Slow and fast light behavior of single photons from a quantum dot interacting with the excited state hyperfine structure of the Cesium D1-line

Tim Kroh, Janik Wolters, Andreas Ahlrichs +9

Hybrid interfaces between distinct quantum systems play a major role in the implementation of quantum networks. Quantum states have to be stored in memories to synchronize the phot…

quant-ph2019★ 29 cited

Heating in Nanophotonic Traps for Cold Atoms

Daniel Hümmer, Philipp Schneeweiss, Arno Rauschenbeutel +1

Laser-cooled atoms that are trapped and optically interfaced with light in nanophotonic waveguides are a powerful platform for fundamental research in quantum optics as well as for…

quant-ph2019★ 2 cited

Two-particle quantum correlations in stochastically-coupled networks

Roberto de J. León-Montiel, Vicenç Méndez, Mario A. Quiroz-Juárez +4

Quantum walks in dynamically-disordered networks have become an invaluable tool for understanding the physics of open quantum systems. In this work, we introduce a novel approach t…

quant-ph2019★ 95 cited

Multiphoton Quantum-State Engineering using Conditional Measurements

Omar S. Magana-Loaiza, Roberto de J. Leon-Montiel, Armando Perez-Leija +7

The quantum theory of electromagnetic radiation predicts characteristic statistical fluctuations for light sources as diverse as sunlight, laser radiation and molecule fluorescence…