Phys. Rev. A: Quantum optics, physics of lasers, nonlinear optics, classical optics

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Recently published articles in Phys. Rev. A in the Table of Content section "Quantum optics, physics of lasers, nonlinear optics, classical optics"
Updated: 11 hours 13 min ago

Spectral signatures of exceptional points and bifurcations in the fundamental active photonic dimer

Fri, 2017-11-17 11:00

Author(s): Yannis Kominis, Vassilios Kovanis, and Tassos Bountis

The fundamental active photonic dimer consisting of two coupled quantum well lasers is investigated in the context of the rate-equation model. Spectral transition properties and exceptional points are shown to occur under general conditions, not restricted by parity-time symmetry as in coupled-mode ...


[Phys. Rev. A 96, 053837] Published Fri Nov 17, 2017

Categories: Journals, Physics

Raman-like stimulated Brillouin scattering in phononic-crystal-assisted silicon-nitride waveguides

Wed, 2017-11-15 11:00

Author(s): Razi Dehghannasiri, Ali Asghar Eftekhar, and Ali Adibi

We study theoretically stimulated Brillouin scattering (SBS) in silicon nitride (SiN) waveguides created as a phononic line defect inside a pillar-based phononic-crystal membrane of the same material for efficient confinement of the generated acoustic phonons to the optical waveguides. The phononic ...


[Phys. Rev. A 96, 053836] Published Wed Nov 15, 2017

Categories: Journals, Physics

Quantum model for coherent Ising machines: Stochastic differential equations with replicator dynamics

Tue, 2017-11-14 11:00

Author(s): Taime Shoji, Kazuyuki Aihara, and Yoshihisa Yamamoto

The quantum theory of coherent Ising machines, based on degenerate optical parametric oscillators and measurement-feedback circuits, is developed using the positive P(α,β) representation of the density operator and the master equation. The theory is composed of the c-number stochastic differential e...


[Phys. Rev. A 96, 053833] Published Tue Nov 14, 2017

Categories: Journals, Physics

Quantum model for coherent Ising machines: Discrete-time measurement feedback formulation

Tue, 2017-11-14 11:00

Author(s): Atsushi Yamamura, Kazuyuki Aihara, and Yoshihisa Yamamoto

Recently, the coherent Ising machine (CIM) as a degenerate optical parametric oscillator (DOPO) network has been researched to solve Ising combinatorial optimization problems. We formulate a theoretical model for the CIM with discrete-time measurement feedback processes, and perform numerical simula...


[Phys. Rev. A 96, 053834] Published Tue Nov 14, 2017

Categories: Journals, Physics

Statistical signatures of multimode single-photon-added and -subtracted states of light

Tue, 2017-11-14 11:00

Author(s): Mattia Walschaers, Claude Fabre, Valentina Parigi, and Nicolas Treps

The addition or subtraction of a photon from a Gaussian state of light is a versatile and experimentally feasible procedure to create non-Gaussian states. In multimode setups, these states manifest a wide range of phenomena when the photon is added or subtracted in a mode-tunable way. In this paper ...


[Phys. Rev. A 96, 053835] Published Tue Nov 14, 2017

Categories: Journals, Physics

Complete photonic band gaps in supercell photonic crystals

Mon, 2017-11-13 11:00

Author(s): Alexander Cerjan and Shanhui Fan

We develop a class of supercell photonic crystals supporting complete photonic band gaps based on breaking spatial symmetries of the underlying primitive photonic crystal. One member of this class based on a two-dimensional honeycomb structure supports a complete band gap for an index-contrast ratio...


[Phys. Rev. A 96, 051802(R)] Published Mon Nov 13, 2017

Categories: Journals, Physics

Quantum-interference-assisted photon blockade in a cavity via parametric interactions

Mon, 2017-11-13 11:00

Author(s): Bijita Sarma and Amarendra K. Sarma

We propose a scheme to achieve a strong photon antibunching with a degenerate optical parametric amplifier coupled to a cavity via unconventional photon blockade. The photon blockade occurs as a result of the suppression of two-photon excitation due to a quantum interference effect between different...


[Phys. Rev. A 96, 053827] Published Mon Nov 13, 2017

Categories: Journals, Physics

Fluorescence enhancement and nonreciprocal transmission of light waves by nanomaterial interfaces

Mon, 2017-11-13 11:00

Author(s): M. Nyman, A. Shevchenko, and M. Kaivola

In an optically absorbing or amplifying linear medium, the energy flow density of interfering optical waves is in general periodically modulated in space. This makes the wave transmission through a material boundary, as described by the Fresnel transmission coefficients, nonreciprocal and apparently...


[Phys. Rev. A 96, 053828] Published Mon Nov 13, 2017

Categories: Journals, Physics

Two-dimensional action spectroscopy of excitonic systems: Explicit simulation using a phase-modulation technique

Mon, 2017-11-13 11:00

Author(s): Fikeraddis A. Damtie, Andreas Wacker, Tõnu Pullerits, and Khadga J. Karki

Two-dimensional (2D) spectroscopy has been intensively used to study electronic and vibronic coherences in biological systems and semiconductors. This technique studies coherent as well as incoherent signals that arise from the nonlinear interaction of a sequence of laser pulses. In this paper we pr...


[Phys. Rev. A 96, 053830] Published Mon Nov 13, 2017

Categories: Journals, Physics

Enhanced output entanglement with reservoir engineering

Mon, 2017-11-13 11:00

Author(s): Xiao-Bo Yan

We study the output entanglement in a three-mode optomechanical system via reservoir engineering by shifting the center frequency of filter function away from resonant frequency. We find the bandwidth of the filter function can suppress the entanglement in the vicinity of resonant frequency of the s...


[Phys. Rev. A 96, 053831] Published Mon Nov 13, 2017

Categories: Journals, Physics

Efficient single-photon frequency conversion in the microwave domain using superconducting quantum circuits

Mon, 2017-11-13 11:00

Author(s): W. Z. Jia, Y. W. Wang, and Yu-xi Liu

We present an approach to achieve efficient single-photon frequency conversion in the microwave domain based on coherent control in superconducting quantum circuits, which consist of a driven artificial atom coupled to a semi-infinite transmission line. Using the full quantum-mechanical method, we a...


[Phys. Rev. A 96, 053832] Published Mon Nov 13, 2017

Categories: Journals, Physics

Model for describing plasmonic nanolasers using Maxwell-Liouville equations with finite-difference time-domain calculations

Fri, 2017-11-10 11:00

Author(s): Dhara J. Trivedi, Danqing Wang, Teri W. Odom, and George C. Schatz

We present a theoretical study of lasing action when plasmonic metallic structures that show lattice plasmon resonances are embedded in a gain medium. Our model combines classical electrodynamics for arrays of gold nanoparticles with a four-level quantum Liouville model of the laser dye photophysics...


[Phys. Rev. A 96, 053825] Published Fri Nov 10, 2017

Categories: Journals, Physics

Antibunching dynamics of plasmonically mediated entanglement generation

Fri, 2017-11-10 11:00

Author(s): Eugene Dumitrescu and Benjamin Lawrie

Dissipative entanglement-generation protocols embrace environmental interactions to generate long-lived entangled states. In this paper, we report on the antibunching dynamics for a pair of actively driven quantum emitters coupled to a shared dissipative plasmonic reservoir. We find that antibunchin...


[Phys. Rev. A 96, 053826] Published Fri Nov 10, 2017

Categories: Journals, Physics

Heisenberg scaling of imaging resolution by coherent enhancement

Thu, 2017-11-09 11:00

Author(s): Robert McConnell, Guang Hao Low, Theodore J. Yoder, Colin D. Bruzewicz, Isaac L. Chuang, John Chiaverini, and Jeremy M. Sage

Classical imaging works by scattering photons from an object to be imaged, and achieves resolution scaling as 1/t, with t the imaging time. By contrast, the laws of quantum mechanics allow one to utilize quantum coherence to obtain imaging resolution that can scale as quickly as 1/t – the so-called ...


[Phys. Rev. A 96, 051801(R)] Published Thu Nov 09, 2017

Categories: Journals, Physics

Quantum criticality in photorefractive optics: Vortices in laser beams and antiferromagnets

Thu, 2017-11-09 11:00

Author(s): Mihailo Čubrović and Milan S. Petrović

We study vortex patterns in a prototype nonlinear optical system: counterpropagating laser beams in a photorefractive crystal, with or without the background photonic lattice. The vortices are effectively planar and have two “flavors” because there are two opposite directions of beam propagation. In...


[Phys. Rev. A 96, 053824] Published Thu Nov 09, 2017

Categories: Journals, Physics

Phase locking of a semiconductor double-quantum-dot single-atom maser

Wed, 2017-11-08 11:00

Author(s): Y.-Y. Liu, T. R. Hartke, J. Stehlik, and J. R. Petta

We experimentally study the phase stabilization of a semiconductor double-quantum-dot (DQD) single-atom maser by injection locking. A voltage-biased DQD serves as an electrically tunable microwave frequency gain medium. The statistics of the maser output field demonstrate that the maser can be phase...


[Phys. Rev. A 96, 053816] Published Wed Nov 08, 2017

Categories: Journals, Physics

Nonreciprocal atomic scattering: A saturable, quantum Yagi-Uda antenna

Wed, 2017-11-08 11:00

Author(s): Clemens Müller, Joshua Combes, Andrés Rosario Hamann, Arkady Fedorov, and Thomas M. Stace

Recent theoretical studies of a pair of atoms in a one-dimensional waveguide find that the system responds asymmetrically to incident fields from opposing directions at low powers. Since there are no explicit time-reversal symmetry-breaking elements in the device, this has caused some debate. Here w...


[Phys. Rev. A 96, 053817] Published Wed Nov 08, 2017

Categories: Journals, Physics

Optical-density-enhanced squeezed-light generation without optical cavities

Wed, 2017-11-08 11:00

Author(s): You-Lin Chuang, Ray-Kuang Lee, and Ite A. Yu

To achieve a high degree of quantum noise squeezing, an optical cavity is often employed to enhance the interaction time between light and matter. Here, we propose to utilize the effect of coherent population trapping (CPT) to directly generate squeezed light without any optical cavity. Combined wit...


[Phys. Rev. A 96, 053818] Published Wed Nov 08, 2017

Categories: Journals, Physics

Quantum trajectories for a system interacting with environment in a single-photon state: Counting and diffusive processes

Wed, 2017-11-08 11:00

Author(s): Anita Dąbrowska, Gniewomir Sarbicki, and Dariusz Chruściński

We derived quantum trajectories for a system interacting with the environment prepared in a continuous mode single-photon state as the limit of a discrete filtering model with an environment defined as a series of independent qubits prepared initially in the entangled state being an analog of a cont...


[Phys. Rev. A 96, 053819] Published Wed Nov 08, 2017

Categories: Journals, Physics

Fundamental limitations of cavity-assisted atom interferometry

Wed, 2017-11-08 11:00

Author(s): M. Dovale-Álvarez, D. D. Brown, A. W. Jones, C. M. Mow-Lowry, H. Miao, and A. Freise

Atom interferometers employing optical cavities to enhance the beam splitter pulses promise significant advances in science and technology, notably for future gravitational wave detectors. Long cavities, on the scale of hundreds of meters, have been proposed in experiments aiming to observe gravitat...


[Phys. Rev. A 96, 053820] Published Wed Nov 08, 2017

Categories: Journals, Physics