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Related papers: Phonon-induced multi-color correlations in hBN sin…

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Optical transitions in a semiconductor quantum dot are theoretically investigated, with emphasis on the coupling to longitudinal optical phonons, and including excitonic effects. When limiting to a finite number of $m$ electron and $n$ hole…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 T. Stauber , R. Zimmermann

We report on simulations of the degree of polarization entanglement of photon pairs simultaneously emitted from a quantum dot-cavity system that demand revisiting the role of phonons. Since coherence is a fundamental precondition for…

Mesoscale and Nanoscale Physics · Physics 2019-09-26 Tim Seidelmann , Florian Ungar , Andreas M. Barth , Alexei Vagov , Vollrath Martin Axt , Moritz Cygorek , Tilmann Kuhn

Single-photon emitters are fundamental building blocks for quantum information processing, communication and sensing. However, unwanted interactions with bulk phonons in their host environment strongly limit their coherence and…

The monolayer of black phosphorous, or phosphorene, has recently emerged as a new 2D semiconductor with intriguing highly anisotropic transport properties. Existing calculations of its intrinsic phonon-limited electronic transport…

Materials Science · Physics 2015-06-24 Bolin Liao , Jiawei Zhou , Bo Qiu , Mildred S. Dresselhaus , Gang Chen

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…

Optical control enables new high resolution probes of narrow collisional (Feshbach) resonances, which are strongly dependent on the relative momentum of colliding atom pairs, and important for simulating neutron matter with ultracold atomic…

Quantum Gases · Physics 2018-10-31 N. Arunkumar , A. Jagannathan , J. E. Thomas

Correlated photons produced by spontaneous parametric down-conversion are an essential tool for quantum communication, especially suited for long-distance connections. To have a reasonable count rate after all the losses in the propagation…

Quantum Physics · Physics 2009-11-10 Valerio Scarani , Hugues de Riedmatten , Ivan Marcikic , Hugo Zbinden , Nicolas Gisin

The emergence of photonic quantum correlations is typically associated with emitters strongly coupled to a photonic mode. Here, we show that semiconductor Rydberg excitons, which are only weakly coupled to a free-space light mode can…

Mesoscale and Nanoscale Physics · Physics 2023-08-02 Valentin Walther , Anders S. Sørensen

Atom-like defects in two-dimensional (2D) hexagonal boron nitride (hBN) have recently emerged as a promising platform for quantum information science. Here we investigate single-photon emissions from atomic defects in boron nitride…

Hexagonal boron nitride exhibits two types of defects with great potential for quantum information technologies: single-photon emitters (SPEs) and one-dimensional grain boundaries hosting topologically-protected phonons, termed as…

Quantum Physics · Physics 2024-11-07 Hugo Molinares , Fernanda Pinilla , Enrique Muñoz , Francisco Muñoz , Vitalie Eremeev

Photonic quantum technologies are on the verge of finding applications in everyday life with quantum cryptography and the quantum internet on the horizon. Extensive research has been carried out to determine suitable quantum emitters and…

Mesoscale and Nanoscale Physics · Physics 2017-08-02 Marcus Reindl , Klaus D. Joens , Daniel Huber , Christian Schimpf , Yongheng Huo , Val Zwiller , Armando Rastelli , Rinaldo Trotta

Nanoscale control over the second-order photon correlation function $g^{(2)}(\tau)$ is critical to emerging research in nonlinear nanophotonics and integrated quantum information science. Here we report on quasiparticle control of photon…

Multi-photon correlations from quantum emitters coupled to vibrational environments lie beyond the reach of standard tools such as the quantum regression theorem (QRT). Here, we introduce a Markovian framework for computing…

Quantum Physics · Physics 2026-03-17 Mateusz Salamon , Oliver Dudgeon , Ahsan Nazir , Jake Iles-Smith

The Hamiltonian describing a system of strongly correlated electrons coupled to dispersionless phonons was solved numerically for a ring of 8 atoms using the density matrix renormalization group (DMRG) method. It was found that electron…

Strongly Correlated Electrons · Physics 2007-05-23 Yury Petrov , Takeshi Egami

We report the results of coincidence counting experiments at the output of a Michelson interferometer using the zero-phonon-line emission of a single molecule at $1.4 K$. Under continuous wave excitation, we observe the absence of…

Quantum Physics · Physics 2009-11-11 A. Kiraz , M. Ehrl , Th. Hellerer , O. E. Mustecaplioglu , C. Brauchle , A. Zumbusch

The theory of Raman scattering by the electron--phonon coupled system in metals and heavily doped semiconductors is developed taking into account the Coulomb screening and the electron--phonon deformation interaction. The Boltzmann equation…

Materials Science · Physics 2009-11-10 L. Falkovsky

The generation and manipulation of non-classical states of light is central to quantum technologies. Color centers in insulators have been extensively studied for single-photon generation, but organic molecules immobilized on substrates…

Light-induced coherent phonons provide a powerful platform for ultrafast control of material properties. However, the microscopic theory and quantum geometric nature of this phenomenon remain underexplored. Here, we develop a fully…

Mesoscale and Nanoscale Physics · Physics 2025-09-03 Jiaming Hu , Zhichao Guo , Wenbin Li , Hua Wang , Kai Chang

We report on the optical investigation of single electron spins bound to fluorine donor impurities in ZnSe. Measurements of photon antibunching establish the presence of single, isolated optical emitters, and magneto-optical studies are…

Quantum Physics · Physics 2012-09-28 K. De Greve , S. M. Clark , D. Sleiter , K. Sanaka , T. D. Ladd , M. Panfilova , A. Pawlis , K. Lischka , Y. Yamamoto

Pure dephasing is widely used in the literature to explain experimental observations on quantum dots in cavities. In many cases, its use is not enough and extra terms need to be "fictitiously" added to accomplish with the observed data as…

Mesoscale and Nanoscale Physics · Physics 2020-01-29 Santiago Echeverri-Arteaga , Herbert Vinck-Posada , José M. Villas-Bôas , Edgar A. Gómez
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