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Nonlinear interactions between single quantum particles are at the heart of any quantum information system, including analog quantum simulation and fault-tolerant quantum computing. This remains a particularly difficult problem for photonic…

Superconducting quantum systems (artificial atoms) have been recently successfully used to demonstrate on-chip effects of quantum optics with single atoms in the microwave range. In particular, a well-known effect of four-wave mixing could…

Quantum Physics · Physics 2017-11-08 A. Yu. Dmitriev , R. Shaikhaidarov , V. N. Antonov , T. Hönigl-Decrinis , O. V. Astafiev

We demonstrate the resonant excitation of two quantum dots in a photonic integrated circuit for on-chip single-photon generation in multiple spatial modes. The two quantum dots are electrically tuned to the same emission wavelength using a…

While scattered light conveys most of the information we perceive, scattering may also distort that information before it reaches our detectors. The problem is acute in many applications, such as in high-resolution microscopy of biological…

We present an experimental and theoretical study of a system consisting of two spatially separated self-assembled InGaAs quantum dots strongly coupled to a single optical nanocavity mode. Due to their different size and compositional…

Mesoscale and Nanoscale Physics · Physics 2010-12-08 A. Laucht , J. M. Villas-Bôas , S. Stobbe , N. Hauke , F. Hofbauer , G. Böhm , P. Lodahl , M. -C. Amann , M. Kaniber , J. J. Finley

We present the experimental realization of spatial quantum correlations of photons that are induced by multiple scattering of squeezed light. The quantum correlation relates photons propagating along two different light trajectories through…

Quantum Physics · Physics 2009-05-14 Stephan Smolka , Alexander Huck , Ulrik L. Andersen , Ad Lagendijk , Peter Lodahl

Photons do not interact directly with each other, but conditional control of one beam by another can be achieved with non-linear optical media at high field intensities. It is exceedingly difficult to reach such intensities at the single…

Quantum Physics · Physics 2016-11-03 A. J. Bennett , J. P. Lee , D. J. P. Ellis , I. Farrer , D. A. Ritchie , A. J. Shields

Lasers and LEDs display a statistical distribution in the number of photons emitted in a given time interval. New applications exploiting the quantum properties of light require sources for which either individual photons, or pairs, are…

Quantum Physics · Physics 2015-05-13 Andrew J Shields

Superpositions of coherent light states, are vital for quantum technologies. However, restrictions in existing state preparation and characterization schemes, in combination with decoherence effects, prevent their intensity enhancement and…

In this paper, we consider a method for implementing a quantum logic gate with photons whose wave function propagates in a one-dimensional Kerr-nonlinear photonic crystal. The photonic crystal causes the incident photons to undergo Bragg…

Quantum Physics · Physics 2011-11-09 Hiroo Azuma

At the first glance, the expression "transparent superconductor" may seem an oxymoron. Still, the first principle calculations and experiments show that the materials that behave as superconductors at low frequencies and do not absorb in…

Quantum Physics · Physics 2019-02-20 V. M. Akulin

Nonlinear Compton scattering is the process of emission of a single photon by a charge driven by an intense laser field. Here, we study the infrared behavior of the photon yield emitted via nonlinear Compton scattering. We first consider…

High Energy Physics - Phenomenology · Physics 2026-05-25 Antonino Di Piazza , Giulio Audagnotto

This article reviews recent theoretical and experimental advances in the fundamental understanding and active control of quantum fluids of light in nonlinear optical systems. In presence of effective photon-photon interactions induced by…

Quantum Gases · Physics 2013-02-25 Iacopo Carusotto , Cristiano Ciuti

We present theoretical and experimental results on spatial quantum correlations induced by multiple scattering of nonclassical light. A continuous mode quantum theory is derived that enables determining the spatial quantum correlation…

We demonstrate a spectrally broadband and effcient technique for collecting photoluminescence from a single InAs quantum dot directly into a standard single mode optical fiber. In this approach, an optical fiber taper waveguide is placed in…

Optics · Physics 2015-05-27 M. Davanco , M. T. Rakher , W. Wegscheider , D. Schuh , A. Badolato , K. Srinivasan

This article introduces a novel approach to perform the simulation of a single qubit quantum algorithm using laser beams. Leveraging the polarization states of photonic qubits, and inspired by variational quantum eigensolvers, we develop a…

In conventional lasers, the emitters are typically incoherent, radiating photons independently; in superradiant lasers, many coherent emitters radiate photons collectively, but they essentially do not interact with each other. Here, we…

Quantum Physics · Physics 2026-02-19 Da-Wu Xiao , Chong Chen , Ren-Bao Liu

The annular photonic crystals have been regarded as a satisfactory candidate to realize dual-polarization photonic device. In this letter, we focus our attention on the study of annular photonic crystal cavity to verify its application in…

Optics · Physics 2014-05-27 Liyong Jiang , Wei Jia , Hong Wu , Wei Zhang , Wei Su , Xiangyin Li

The interaction between molecules is commonly ignored in surface-enhanced Raman scattering (SERS). Under this assumption, the total SERS signal is described as the sum of the individual contributions of each molecule treated independently.…

Optics · Physics 2020-01-08 Yuan Zhang , Javier Aizpurua , Ruben Esteban

We consider quantum light-matter interfaces comprised of multiple layers of two-dimensional atomic arrays, whose lattice spacings exceed the wavelength of light. While the coupling of light to a single layer of such a ``superwavelength"…

Quantum Physics · Physics 2024-02-13 Roni Ben-Maimon , Yakov Solomons , Nir Davidson , Ofer Firstenberg , Ephraim Shahmoon