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Common-envelope events (CEEs), during which two stars temporarily orbit within a shared envelope, are believed to be vital for the formation of a wide range of close binaries. For decades, the only evidence that CEEs actually occur has been…

High Energy Astrophysical Phenomena · Physics 2015-03-13 N. Ivanova , S. Justham , J. L. Avendano Nandez , J. C. Lombardi

We observe anomalous visible to near-infrared electromagnetic radiation emitted from electrically driven atomic-size point contacts. We show that the number of photons released strongly depends on the quantized conductance steps of the…

Mesoscale and Nanoscale Physics · Physics 2020-11-30 Mickaël Buret , Igor V. Smetanin , Alexander V. Uskov , Gérard Colas des Francs , Alexandre Bouhelier

Photoionization of an atom $A$, in the presence of a neighboring atom $B$, can proceed via resonant excitation of $B$ with subsequent energy transfer to $A$ through two-center electron-electron correlation. We demonstrate that this…

Atomic Physics · Physics 2015-05-19 B. Najjari , A. B. Voitkiv , C. Müller

We develop the theory of light propagation under the conditions of electromagnetically induced transparency (EIT) in systems involving strongly interacting Rydberg states. Taking into account the quantum nature and the spatial propagation…

When plasmonic nanoparticles are coupled with semiconductors, highly energetic hot carriers can be extracted from the metal-semiconductor interface for various applications in light energy conversion. Hot charge-carrier extraction upon…

Interface interactions in 2D vertically stacked heterostructures play an important role in optoe-lectronic applications, photodetectors based on graphene/InSe heterostructures had shown promising performance nowadays. However, nonlinear…

Optics · Physics 2023-05-12 Jialin Li , Lizhen Wang , Yuzhong Chen , Yujie Li , Haiming Zhu , Linjun Li , Limin Tong1

Here we present a microscopic model that describes the Electromagnetically Induced Transparency (EIT) phenomenon in the multiple scattering regime. We consider an ensemble of cold three-level atoms, in a $\Lambda$ configuration, scattering…

Quantum Physics · Physics 2021-12-22 M. H. Oliveira , C. E. Máximo , C. J. Villas-Boas

We present a theory to investigate electro-kinetic behavior, namely, electrorotation and dielectrophoresis under alternating current (AC) applied fields for a pair of touching inhomogeneous colloidal particles and biological cells. These…

Soft Condensed Matter · Physics 2007-05-23 J. P. Huang , Mikko Karttunen , K. W. Yu , L. Dong , G. Q. Gu

In clouds of suspended particles (grains, droplets, spheres, crystals, etc.), collisions electrify the particles and the clouds, producing large electric potential differences over large scales. This is seen most spectacularly in the…

Soft Condensed Matter · Physics 2017-07-28 Freja Nordsiek , Daniel P. Lathrop

Electronic Energy Transfer (EET) between chromophores is fundamental in many natural light-harvesting complexes, serving as a critical step for solar energy funneling in photosynthetic plants and bacteria. The complicated role of the…

Chemical Physics · Physics 2024-02-05 Colin Coane , Marco Romanelli , Giulia Dall'Osto , Rosa Di Felice , Stefano Corni

It has been shown by Liberati et al. [quant-ph/9904013] that a dielectric medium with a time-dependent refractive index may produce photons. We point out that a free electric charge which interacts with such a medium will emit quantum…

Quantum Physics · Physics 2009-01-14 B. Jensen , I. Brevik

The history is described of how one of the most commonly used electric circuit components, an ordinary electric contact, has become a powerful tool for the physicists to study various mechanisms of electron scattering in metals. The…

Popular Physics · Physics 2007-05-23 Yu. G. Naidyuk , I. K. Yanson

Photo-induced phase transitions have been intensively studied owing to the ability to control a material of interest in the ultrafast manner, which can induce exotic phases unable to be attained at equilibrium. However, the key mechanisms…

In this article, the atom excitation suppression is studied in two ways. The first way of exploring the excitation suppression is by an external DC electric field. The second way is to study the excitation suppression caused by electric…

Atomic Physics · Physics 2019-04-23 Jianing Han , Juliet Mitchell , Morgan Umstead

Exciton dissociation at heterojunctions in photovoltaic devices is not completely understood despite being fundamentally necessary to generate electrical current. One of the fundamental issues for ab initio calculations is that hybrid…

Mesoscale and Nanoscale Physics · Physics 2017-06-20 Michael J. Waters , Daniel Hashemi , John Kieffer

The Seebeck effect describes the generation of an electric potential in a conducting solid exposed to a temperature gradient. Besides fundamental relevance in solid state physics, it serves as a key quantity to determine the performance of…

Tailoring the interactions between quantum emitters and single photons constitutes one of the cornerstones of quantum optics. Coupling a quantum emitter to the band edge of a photonic crystal waveguide (PCW) provides a unique platform for…

Quantum Physics · Physics 2017-09-01 J. D. Hood , A. Goban , A. Asenjo-Garcia , M. Lu , S. -P. Yu , D. E. Chang , H. J. Kimble

Triboelectricity has been known since antiquity, but the fundamental physics underlying this phenomenon lacks consensus. We present a flexoelectric model for triboelectricity where contact deformation induced band bending is the driving…

Materials Science · Physics 2020-10-27 Christopher A. Mizzi , Laurence D. Marks

A theory of the Post-Collision Interaction (PCI) is developed for the case when an electron atom impact results in creation of two low-energy Wannier electrons and an ion excited into an autoionizing state. The following autoionization…

Atomic Physics · Physics 2009-10-30 M. Yu. Kuchiev

Electromagnetic (EM) probes such as photons and dileptons provide direct insight into the space-time evolution of the hot and dense matter formed in heavy-ion collisions. Being unaffected by strong interactions, they serve as penetrating…

Nuclear Experiment · Physics 2025-10-01 Sebastian Scheid