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Single-photon detectors are ``blind" after the detection of a photon, and thereafter display a characteristic recovery in efficiency, during which the number of undetected photons depends on the statistics of the incident light. We show how…

We report the first experimental demonstration of two-photon imaging with a pseudo-thermal source. Similarly to the case of entangled states, a two-photon Gaussian thin lens equation is observed, indicating EPR type correlation in position.…

Quantum Physics · Physics 2009-11-10 Alejandra Valencia , Giuliano Scarcelli , Milena D'Angelo , Y. Shih

It is challenging for observing superbunching effect with true chaotic light, here we propose and demonstrate a method to achieve superbunching effect of the degree of second-order coherence is 2.42 with broadband stationary chaotic light…

Quantum Physics · Physics 2021-01-27 Sheng Luo , Yu Zhou , Huaibin Zheng , Jianbin Liu , Hui Chen , Yuchen He , Wanting Xu , Shuanghao Zhang , Fuli Li , Zhuo Xu

The second-order photon correlation function is of great importance in quantum optics which is typically measured with the Hanbury Brown and Twiss interferometer which employs a pair of single-photon detectors and a dual-channel time…

Quantum Physics · Physics 2021-02-02 Shaojie Liu , Xing Lin , Feng Liu , Hairui Lei , Wei Fang , Chaoyuan Jin

We perform a nonlocal double-slit interference experiment with pseudothermal light. The experimental result exhibits a typical double-slit interference fringe in the intensity correlation measurement, in agreement with the theoretical…

Quantum Physics · Physics 2007-05-23 Lu Gao , Jun Xiong , Lu-Fang Lin , Wei Wang , Su-Heng Zhang , Kaige Wang

Photon correlation is at the heart of quantum optics and has important applications in quantum technologies. Here we propose a universally applicable mechanism that can generate the superbunching light with ultrastrong second-order and…

Quantum Physics · Physics 2024-12-16 He-bin Zhang , Yuanjiang Tang , Yong-Chun Liu

Recently, Chen \em et al\rm.\ [New J. Phys. {\bf 13} (2011) 083018] presented experimental results, accompanied by quantum-mechanical analysis, showing that the quantum interference behavior of Bell states could be simulated in a modified…

Quantum Physics · Physics 2015-05-30 Jeffrey H. Shapiro

The first- and second-order temporal interference between two independent thermal and laser light beams is discussed by employing the superposition principle in Feynman's path integral theory. It is concluded that the first-order temporal…

Optics · Physics 2015-04-29 Jianbin Liu , Huaibin Zheng , Hui Chen , Yu Zhou , Fu-li Li , Zhuo Xu

This proposal investigates the photon-statistics of light emitted by a statistical ensemble of cold atoms excited by the near-field of an optical nanofiber tip. Dipole-dipole interactions of atoms at such short distance from each other…

A technique complementary to those for spectral lines is proposed for the observation of continuum radiation. As, quantum mechanically, the radiation is a mixture of pure states, it should be possible to measure the temporal coherence of…

Quantum Physics · Physics 2015-10-08 Richard Fong

We report observation of a counter-intuitive phenomenon in multi-path correlation interferometry with thermal light. The intensity correlation between the outputs of two unbalanced Mach-Zehnder interferometers (UMZI) with two classically…

Quantum Physics · Physics 2018-01-03 Yong Sup Ihn , Yosep Kim , Vincenzo Tamma , Yoon-Ho Kim

Spectral filtering of resonance fluorescence is widely employed to improve single photon purity and indistinguishability by removing unwanted backgrounds. For filter bandwidths approaching the emitter linewidth, complex behaviour is…

Developments in quantum technologies lead to new applications that require radiation sources with specific photon statistics. A widely used Poissonian statistics are easily produced by lasers; however, some applications require super- or…

Thermal states of light are widely used in quantum optics due to their correlation properties. As is well known, their correlation properties and the photon number distribution as a whole are strongly dependent on the mode number selected…

Quantum Physics · Physics 2020-01-22 K. G. Katamadze , G. V. Avosopiants , N. A. Bogdanova , Yu. I. Bogdanov , S. P. Kulik

We demonstrate sub-shot-noise photon-number correlations in a (temporal) multimode mesoscopic ($\sim 10^3$ detected photons) twin-beam produced by ps-pulsed spontaneous non-degenerate parametric downconversion. We have separately detected…

Quantum Physics · Physics 2009-11-13 Maria Bondani , Alessia Allevi , Guido Zambra , Matteo G. A. Paris , Alessandra Andreoni

The Hanbury Brown-Twiss (HBT) effect, discovered in the 1950s and further developed in the 1960s, was originally used to estimate stellar angular diameters through intensity correlations measured by spatially separated detectors. Further…

The quantum statistics of particles is determined by both the spins and the indistinguishability of quantum states. Here we studied the quantum statistics of partially distinguishable photons by defining the multi-photon…

Quantum Physics · Physics 2017-08-16 Fang-Wen Sun , Ao Shen , Yang Dong , Xiang-Dong Chen , Guang-Can Guo

In general, the typical approach to discriminate antibunching, bunching or superbunching categories make use of calculating the second-order coherence function ${g^{(2)}}(\tau )$ of light. Although the classical light sources correspond to…

Generating correlated photon pairs at the nanoscale is a prerequisite to creating highly integrated optoelectronic circuits that perform quantum computing tasks based on heralded single-photons. Here we demonstrate fulfilling this…

Mesoscale and Nanoscale Physics · Physics 2019-05-14 Christopher Leon , Anna Rosławska , Abhishek Grewal , Olle Gunnarsson , Klaus Kuhnke , Klaus Kern

In this Letter we propose a fundamental test for probing the thermal nature of the spectrum emitted by sonoluminescence. We show that two-photon correlations can in principle discriminate between real thermal light and the quasi-thermal…

Quantum Physics · Physics 2009-10-31 Francesco Belgiorno , Stefano Liberati , Matt Visser , Dennis Sciama