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Related papers: Time-Resolved Two-Photon Quantum Interference

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Photon correlations represent a central resource in many quantum optics experiments, with applications ranging from quantum information protocols to sensing. Engineering such correlations is often challenging, especially in multi-particle…

We obtain time-resolved spectra of spontaneous emission and resonance fluorescence of a single multilevel emitter where two antiparallel transitions interfere and cause quantum beats. After rising as a single broad peak, the spontaneous…

Quantum Physics · Physics 2025-01-07 Héctor M. Castro-Beltrán , Ricardo Román-Ancheyta

We demonstrate and characterize interference between discrete photons emitted by two separate semiconductor quantum dot states in different samples excited by a pulsed laser. Their energies are tuned into resonance using strain. The photons…

Starting with a down to earth interpretation of quantum mechanics for a free particle, the disappearance and reappearance of interference in the 2 slit problem with a detector behind one are treated in detail. A partial interpretation of…

Quantum Physics · Physics 2007-05-23 Thomas O'Malley

Light's wave-particle duality is at the heart of quantum mechanics and can be well illustrated by Wheeler's delayed-choice experiment. The choice of inserting or removing the second classical (quantum) beam splitter in a Mach-Zehnder…

Quantum Physics · Physics 2015-05-06 H. Yan , K. Liao , Z. Deng , J. He , Z. Y. Xue , Z. M. Zhang , S. L. Zhu

The observation of the Hong-Ou-Mandel (HOM)-type two-photon interference (TPI) has played an important role in the development of photonic quantum technologies. The time-resolved coincidence-detection technique has been effectively used to…

Quantum Physics · Physics 2021-06-16 Heonoh Kim , Osung Kwon , Han Seb Moon

Surface plasma waves are collective oscillations of electrons that propagate along a metal-dielectric interface. In the last ten years, several groups have reproduced fundamental quantum optics experiments with surface plasmons. Observation…

We consider the interference of two photons with different colors in the context of a Hong-Ou-Mandel experiment, in which single photons enter each of the input ports of a beam splitter, and exit in the same, albeit undetermined, output…

Quantum Physics · Physics 2015-05-18 M. G. Raymer , S. J. van Enk , C. J. McKinstrie , H. J. McGuinness

The quantum interference between a coherent state and a single photon is an important tool in continuous variable optical quantum technologies to characterize and engineer non-Gaussian quantum states. Semiconductor quantum dots, which have…

Advanced quantum communication protocols require high-visibility quantum interference between photons generated at distant nodes, which places stringent demands on optical synchronization. Conventionally, synchronization of optical wave…

We present a sensing scheme for estimating the frequency difference of two non-entangled photons. The technique consists of time-resolving sampling measurements at the output of a beam splitter. With this protocol, the frequency shift…

Quantum Physics · Physics 2025-12-10 Luca Maggio , Danilo Triggiani , Paolo Facchi , Vincenzo Tamma

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 show that it is possible to generate a novel single-photon fringe pattern by using two spatially separated identical bi-photon sources. The fringes are similar to the ones observed in a Michelson interferometer and possess certain…

For dissipation-free photon-photon interaction at the single photon level, we analyze one-photon transition and two-photon transition induced by photon pairs in three-level atoms using two-photon wavefunctions. We show that the two-photon…

Quantum Physics · Physics 2011-06-16 Toshihiro Nakanishi , Hirokazu Kobayashi , Kazuhiko Sugiyama , Masao Kitano

We consider multimode two-photon interference at a beam splitter by photons created by spontaneous parametric down-conversion. The resulting interference pattern is shown to depend upon the transverse spatial symmetry of the pump beam. In…

Quantum Physics · Physics 2009-11-07 S. P. Walborn , A. N. de Oliveira , S. Pádua , C. H. Monken

In this paper, we give the quantum wave equations of single photon when it is in the free or medium space. With these equations, we can study light interference and diffraction with quantum approach. Otherwise, they can be applied in…

Quantum Physics · Physics 2010-02-10 Xiang-Yao Wu , Xiao-Jing Liu , Yi-Heng Wu , Qing-Cai Wang , Yan Wang

The two-photon Hong-Ou-Mandel (HOM) interference is a pure quantum effect which indicates the degree of indistinguishability of photons. The four-photon HOM interference exhibits richer dynamics in comparison to the two-photon interference…

Optics · Physics 2019-11-20 A. Ferreri , V. Ansari , C. Silberhorn , P. R. Sharapova

The interference of non-classical states of light enables quantum-enhanced applications reaching from metrology to computation. Most commonly, the polarisation or spatial location of single photons are used as addressable degrees-of-freedom…

In this paper, we study two-photon interference with the approach of photon quantum theory, with specific attention to the two-photon interference experiment carried out by Milena D'Angelo et al. (Phys. Rev. Lett 87:013602, 2001). We find…

Quantum Physics · Physics 2015-06-05 Xiang-Yao Wu , Bo-Jun Zhang , Xiao-Jing Liu , Hong Li , Si-Qi Zhang , Jing Wang , Yi-Heng Wu , Jing-Wu Li

When two-color femtosecond laser pulses interact with matter, electrons can be emitted through various multiphoton excitation pathways. Quantum interference between these pathways gives rise to a strong oscillation of the photoemitted…

Optics · Physics 2022-05-24 Ang Li , Yiming Pan , Philip Dienstbier , Peter Hommelhoff