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The construction of photon-photon quantum phase gate based on photonic nonlinearity has long been a fundamental issue, which is vital for deterministic and scalable photonic quantum information processing. It requires not only strong…

Quantum Physics · Physics 2020-04-09 Ming Li , Yan-Lei Zhang , Hong X. Tang , Chun-Hua Dong , Guang-Can Guo , Chang-Ling Zou

We present for the first time the concept of a seeded {\gamma} quantum Free-Electron-Laser (QFEL) at 478 keV, which has very different properties compared to a classical. The basic concept is to produce a highly brilliant {\gamma} beam via…

Accelerator Physics · Physics 2015-06-03 M. M. Günther , M. Jentschel , P. G. Thirolf , T. Seggebrock , D. Habs

Quantum electrodynamics (qed) is used to derive the differential cross sections measured in the three new experimental internal source ensemble x-ray holographies: bremsstrahlung (BXH), fluorescence (XFH), and multiple-energy (MEXH) x-ray…

Condensed Matter · Physics 2009-10-28 Gerald A. Miller , Larry B. Sorensen

The physical reasons in favour of a two dimensional topological model of quantum electrodynamics are discussed. It is shown that in accord with this model there is a new uncertainty relation for photon which is compatible with QED.

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Ghaboussi

We present a general framework for quantum interference (QI) between multiple, fundamentally different processes. Our framework reveals the importance of shaped input wavefunctions in enabling QI, and predicts unprecedented interactions…

Quantum Physics · Physics 2023-10-10 J. Lim , Y. S. Ang , L. K. Ang , L. J. Wong

Controlling electrically-stimulated quantum light sources (QLS) is key for developing integrated and low-scale quantum devices. The mechanisms leading to quantum emission are complex, as a large number of electronic states of the system…

Mesoscale and Nanoscale Physics · Physics 2024-02-28 Katharina Kaiser , Anna Rosławska , Michelangelo Romeo , Fabrice Scheurer , Tomáš Neuman , Guillaume Schull

Here we present the details of a self-consistent procedure of the photoemission data analysis within the self-energy approach introduced in Ref.1 (cond-mat/0405696). We derive the relations of the quasiparticle self-energy with the…

Strongly Correlated Electrons · Physics 2007-05-23 A. A. Kordyuk , S. V. Borisenko , A. Koitzsch , J. Fink , M. Knupfer , H. Berger

The high efficiency of charge generation within organic photovoltaic blends apparently contrasts with the strong "classical" attraction between newly formed electron-hole pairs. Several factors have been identified as possible facilitators…

Mesoscale and Nanoscale Physics · Physics 2017-09-07 Mosè Casalegno , Raffaele Pastore , Julien Idé , Riccardo Po , Guido Raos

A cardinal obstacle to performing quantum-mechanical simulations of strongly-correlated matter is that, with the theoretical tools presently available, sufficiently-accurate computations are often too expensive to be ever feasible. Here we…

Strongly Correlated Electrons · Physics 2021-02-10 John Rogers , Tsung-Han Lee , Sahar Pakdel , Wenhu Xu , Vladimir Dobrosavljević , Yong-Xin Yao , Ove Christiansen , Nicola Lanatà

Quantum simulation of molecular electronic structure is one of the most promising applications of quantum computing. However, achieving chemically accurate predictions for strongly correlated systems requires quantum phase estimation (QPE)…

Quantum Physics · Physics 2026-03-31 Shota Kanasugi , Riki Toshio , Kazunori Maruyama , Hirotaka Oshima

We describe a theory on photo-thermoelectric properties of a semiconductor, which include photo-conductivity, photo-Seebeck coefficient, and photo-Hall effect. We demonstrate that these properties provide a powerful tool for the study of…

Materials Science · Physics 2019-11-01 Zhenyu Pan , Zheng Zhu , Jeffrey J. Urban , Fan Yang , Heng Wang

In this paper we present a mathematical analysis of the photoelectric effect for one-electron atoms in the framework of non-relativistic QED. We treat photo-ionization as a scattering process where in the remote past an atom in its ground…

Mathematical Physics · Physics 2015-05-14 Marcel Griesemer , Heribert Zenk

Rate of single-photon generation by quantum emitters (QEs) can be enhanced by placing a QE inside a resonant structure. This structure can represent an all-dielectric micro-resonator or waveguide and thus be characterized by ultra-low loss…

Mesoscale and Nanoscale Physics · Physics 2017-01-25 Sergey I. Bozhevolnyi , Jacob B. Khurgin

Electron beam induced current (EBIC) is a powerful characterization technique which offers the high spatial resolution needed to study polycrystalline solar cells. Ideally, an EBIC measurement reflects the spatially resolved quantum…

Materials Science · Physics 2014-09-26 Paul M. Haney , Heayoung P. Yoon , Prakash Koirala , Robert W. Collins , Nikolai B. Zhitenev

Quantum phase estimation (QPE) is the key subroutine of several quantum computing algorithms as well as a central ingredient in quantum computational chemistry and quantum simulation. While QPE strategies have focused on the estimation of a…

Quantum Physics · Physics 2021-07-26 Valentin Gebhart , Augusto Smerzi , Luca Pezzè

Photoexcitation of the nucleon is studied in the framework of the constituent quark model with nonrelativistic quark-quark interactions. Utilizing the dominance of the pairwise structure of the relevant three-quark potential, the bound and…

Nuclear Theory · Physics 2022-03-02 I. P. Matamba , M. Braun , S. A. Sofianos

Modulated electroreflectance spectroscopy $\Delta R/R$ of semiconductor self-assembled quantum dots is investigated. The structure is modeled as dots with lens shape geometry and circular cross section. A microscopic description of the…

Materials Science · Physics 2016-08-16 A. H. Rodríguez , C. Trallero-Giner , Martín Muñoz , María C. Tamargo

This chapter will primarily focus on the studies of quantum optics with semiconductor, epitaxially grown quantum dots embedded in photonic crystal cavities. We will start by giving brief introductions into photonic crystals and quantum…

Quantum Physics · Physics 2014-02-12 Jelena Vuckovic

We report the first experimental observations of two-photon emission from semiconductors, to the best of our knowledge, and develop a corresponding theory for the room-temperature process. Spontaneous two-photon emission is demonstrated in…

Quantum Physics · Physics 2007-10-25 Alex Hayat , Pavel Ginzburg , Meir Orenstein

Growing interest in quantum computing for practical applications has led to a surge in the availability of programmable machines for executing quantum algorithms. Present day photonic quantum computers have been limited either to…