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The effect known as ``induced coherence without induced emission'' has spawned a field dedicated to imaging with undetected photons (IUP), where photons from two distinct photon-pair sources interfere if their outputs are made…

In this paper, single input--double output linear time-invariant systems are studied. Both components of system's impulse response function (IRF) are supposed to be real-valued and square-integrable. One component is unknown while the…

Statistics Theory · Mathematics 2020-05-26 Irina Blazhievska , Vladimir Zaiats

We report photon correlation measurements that allow us to observe unique signatures of biexcitons in a single self-assembled InAs quantum dot. Photon correlation measurements of biexciton emission exhibit both bunching and antibunching…

Condensed Matter · Physics 2009-11-07 A. Kiraz , S. Falth , C. Becher , B. Gayral , W. V. Schoenfeld , P. M. Petroff , Lidong Zhang , E. Hu , A. Imamoglu

We investigate the temperature dependence of photon coherence properties through two photon interference (TPI) measurements from a single QD under resonant excitation. We show that the loss of indistinguishability is only related to the…

In the framework of the signal processing approach to single-atom resonance fluorescence with spectral resolution, we diagrammatically derive an analytical formula for arbitrary-order spectral correlation functions of the scattered fields…

Quantum Physics · Physics 2016-09-21 Vyacheslav N. Shatokhin , Sergei Ya. Kilin

We present design equations for a two-element closely-spaced interferometer for measuring the noise temperature of a uniform sky. Such an interferometer is useful for observing highly diffuse radio sources such as the Milky Way and…

Instrumentation and Methods for Astrophysics · Physics 2020-09-11 Adrian T. Sutinjo , Benjamin McKinley , Leonid Belostotski , Daniel C. X. Ung , Jishnu N. Thekkeppattu

Derivation of the procedures that can be applied in evaluating two-time correlation function in terms of coherent-state propagator and corresponding Q-function is presented. On the basis that the involved functions are generally exponential…

Quantum Physics · Physics 2009-10-16 Sintayehu Tesfa

Non-equilibrium photon correlations of coherently excited single quantum systems can reveal their internal quantum dynamics and provide spectroscopic access. Here we propose and discuss the fundamentals of a coherent photon coincidence…

Quantum Physics · Physics 2020-11-04 Matthew Otten , Tristan Kenneweg , Matthias Hensen , Stephen K. Gray , Walter Pfeiffer

Explicit expressions are determined for the photon correlation function of ``blinking'' quantum systems, i.e. systems with different types of fluorescent periods. These expressions can be used for a fit to experimental data and for…

Quantum Physics · Physics 2009-11-07 Gerhard C. Hegerfeldt , Dirk Seidel

We investigate two-color photon correlations in the light emitted by strongly coupled two-level emitters. Spectral filtering allows us to manipulate the collected light statistics and we show that the resonances induced by dipole-dipole…

Quantum Physics · Physics 2021-05-12 Elnaz Darsheshdar , Mathilde Hugbart , Romain Bachelard , Celso Jorge Villas-Boas

We consider here the bremsstrahlung emission of photons at low and intermediate energies $ E_{lab}\le 1000 MeV/u$ of the projectile. and derive expressions more general than previous results obtained by Neuhauser which were limited to the…

High Energy Physics - Phenomenology · Physics 2010-11-01 L. V. Razumov , R. M. Weiner

We look at the new two-particle correlation function that can provide the space-time information about the source of two charged pions. This function clearly reflects the chaotic and incoherent nature of the particle emission source…

High Energy Physics - Phenomenology · Physics 2010-11-11 G. A. Kozlov

We present a theoretical analysis of the intensity autocorrelation for the spontaneous emission from a planar ensemble of self-assembled quantum dots. Using the quantum jump approach, we numerically simulate the evolution of the system and…

Mesoscale and Nanoscale Physics · Physics 2016-03-09 Fitria Miftasani , Paweł Machnikowski

We investigate the resonant quantum dynamics of a multi-qubit ensemble in a microcavity. Both the quantum-dot subsystem and the microcavity mode are pumped coherently. We found that the microcavity photon statistics depends on the phase…

Quantum Physics · Physics 2016-12-21 Viorel Ciornea , Profirie Bardetski , Mihai A. Macovei

We analyze the influence of classical Gaussian noise on Landau-Zener transitions during a two-level crossing in a time-dependent regular external field. Transition probabilities and coherence factors become random due to the noise. We…

Statistical Mechanics · Physics 2009-11-10 V. L. Pokrovsky , S. Scheidl

Resonant optical excitation of few-level quantum systems enables coherent quantum control, resonance fluorescence, and direct characterization of dephasing mechanisms. Experimental demonstrations have been achieved in a variety of atomic…

Mesoscale and Nanoscale Physics · Physics 2016-04-20 S. Kumar , M. Brotons-Gisbert , R. Al-Khuzheyri , A. Branny , G. Ballesteros-Garcia , J. F. Sanchez-Royo , B. D. Gerardot

Localized excitons in two-dimensional (2D) materials are considered as promising sources of single photons on demand. The photon indistinguishability as key figure of merit for quantum information processing is strongly influenced by the…

Mesoscale and Nanoscale Physics · Physics 2025-03-10 Alexander Steinhoff , Steffen Wilksen , Ivan Solovev , Christian Schneider , Christopher Gies

Measurements of resonant tunneling through a localized impurity state are used to probe fluctuations in the local density of states of heavily doped GaAs. The measured differential conductance is analyzed in terms of correlation functions…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 J. Könemann , P. König , T. Schmidt , E. McCann , V. I. Fal'ko , R. J. Haug

In this Letter, the quantum correlation measurement technique as a method of power noise monitoring is investigated. Its principal idea of correlating two photodetector signals is introduced and contrasted to the conventional approach,…

Optics · Physics 2022-03-02 Jasper Robert Venneberg , Benno Willke

Spatially correlated noise poses a significant challenge to fault-tolerant quantum computation by breaking the assumption of independent errors. Existing methods such as cycle benchmarking and quantum process tomography can characterize…

Quantum Physics · Physics 2026-02-11 Balázs Gulácsi , Joris Kattemölle , Guido Burkard