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The nonclassical effect of photon anti-bunching is observed in the mixed field of a narrow band two-photon source and a coherent field under certain condition. A variety of different features in photon statistics are found to be the…

Quantum Physics · Physics 2016-09-08 Y. J. Lu , Z. Y. Ou

The claim that Kuwahara et al. [1] have reported the observation of a Hanbury Brown-Twiss electron antibunching dip (their Fig. 3) could possibly be explained as an electron source emission rate dependency on the light polarization. Strain…

Quantum Physics · Physics 2021-12-08 Herman Batelaan , Sam Keramati , T. J. Gay

The Hanbury Brown and Twiss effect (HBT) is described by numerical and analytical modeling, as well as experimentally, using sound waves and easily available instrumentation. An interesting phenomenon that has often been considered too…

Physics Education · Physics 2022-01-12 Arnt Inge Vistnes , Joakim Bergli

The emission from a nonlinear photonic mode coupled weakly to a gain medium operating below threshold is predicted to exhibit antibunching. In the steady state regime, analytical solutions for the relevant observable quantities are found in…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 Sanjib Ghosh , Timothy C. H. Liew

We verify transverse spatial entanglement of photon-pairs generated in spontaneous parametric down conversion using a nonlinear interferometric technique without relying on any coincidence detection. We experimentally demonstrate the…

Intensity interferometry (II) offers a powerful means to observe stellar objects with a high resolution. In this work, we demonstrate that II can also probe internal stellar kinematics by revealing a time-asymmetric Hanbury Brown and Twiss…

Although energy level repulsion is typically observed in interacting quantum systems, non-Hermitian physics predicts the effect of level attraction, which occurs when significant energy dissipation is present. Here, we show a manifestation…

Mesoscale and Nanoscale Physics · Physics 2024-09-20 Dąbrówka Biegańska , Maciej Pieczarka , Christian Schneider , Sven Höfling , Sebastian Klembt , Marcin Syperek

We analyze atomic photoexcitation into the discrete states by twisted photons, or photons carrying extra orbital angular momentum along their direction of propagation. From the angular momentum and parity considerations, we are able to…

Atomic Physics · Physics 2018-03-07 Andrei Afanasev , Carl E. Carlson , Maria Solyanik

We discuss the elementary physics of the final state Coulomb interactions in Hanbury-Brown Twiss interferometry, showing -- with explicit comparison to E877 data for $\pi^+\pi^-$ and $\pi^\pm p$ -- that the Coulomb corrections in the pair…

Nuclear Theory · Physics 2009-10-30 G. Baym , P. Braun-Munzinger

A tunable quantum point contact with modes occupied in both transverse directions is studied by magnetotransport experiments. We use conductance quantization of the one-dimensional subbands as a tool to determine the mode spectrum. A…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 G. Salis , T. Heinzel , K. Ensslin , O. J. Homan , W. Bachtold , K. Maranowski , A. C. Gossard

We realized an equivalent Hanbury Brown and Twiss experiment for a beam of electrons in a two dimensional electron gas in the quantum Hall regime. A metallic split gate serves as a tunable beam splitter which is used to partition the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 S. Oberholzer , M. Henny , C. Strunk , C. Schonenberger , T. Heinzel , K. Ensslin , M. Holland

There is a broad interest in enhancing the strength of light-atom interactions to the point where injecting a single photon induces a nonlinear material response. Here, we show theoretically that sub-Doppler-cooled, two-level atoms that are…

Atomic Physics · Physics 2014-07-28 Bonnie L. Schmittberger , Daniel J. Gauthier

We present a new method to test the Standard Model expectations at the LHC using photon-induced $WW$ production. Both $W$ decay in the main ATLAS or CMS detectors while scattered protons are measured in forward detectors. The sensitivity to…

High Energy Physics - Phenomenology · Physics 2008-11-26 O. Kepka , C. Royon

We report a measurement of the transverse momentum correlation between two photons by detecting only one of them. Our method uses two identical sources in an arrangement, in which the phenomenon of induced coherence without induced emission…

Quantum Physics · Physics 2017-04-03 Armin Hochrainer , Mayukh Lahiri , Radek Lapkiewicz , Gabriela B. Lemos , Anton Zeilinger

This manuscript presents a method to convert position correlation of photon-pairs into polarization entanglement. This is achieved by individually manipulating the polarization state of photons generated in different parts of a non-linear…

Quantum Physics · Physics 2020-07-15 Chithrabhanu Perumangatt , Alexander Lohrmann , Alexander Ling

We study the counting statistics for electrons and photons being emitted from a driven two level quantum dot. Our technique allows us to calculate their mutual correlations as well. We study different transport configurations by tuning the…

Mesoscale and Nanoscale Physics · Physics 2008-09-09 Rafael Sánchez , Gloria Platero , Tobias Brandes

We present an extended version of the projector-based renormalization method that can be used to address not only equilibrium but also non-equilibrium situations in coupled fermion-boson systems. The theory is applied to interacting…

Strongly Correlated Electrons · Physics 2019-01-16 Klaus W. Becker , Holger Fehske , Van-Nham Phan

Magnons are the low-energy excitations of magnetically ordered materials. While the magnetic moment of a ferromagnet aligns with an applied magnetic field, it has been experimentally shown that the magnetic order can be inverted by…

Mesoscale and Nanoscale Physics · Physics 2026-02-04 Anna-Luisa E. Römling , Artim L. Bassant , Rembert A. Duine

We study magnetic orders of fermions under cavity-assisted Raman couplings in a one-dimensional lattice at half filling. The cavity-enhanced atom-photon coupling introduces a dynamic long-range interaction between the fermions, which…

Quantum Physics · Physics 2018-10-17 Jingtao Fan , Xiaofan Zhou , Wei Zheng , Wei Yi , Gang Chen , Suotang Jia

We analyze Cooper pairing instabilities in strongly driven electron-phonon systems. The light-induced non-equilibrium state of phonons results in a simultaneous increase of the superconducting coupling constant and the electron scattering.…

Superconductivity · Physics 2016-12-16 Michael Knap , Mehrtash Babadi , Gil Refael , Ivar Martin , Eugene Demler