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The identification of orbital angular momentum (OAM) as a fundamental property of a beam of light nearly twenty-five years ago has led to an extensive body of research around this topic. The possibility that single photons can carry OAM has…

Quantum Physics · Physics 2017-01-10 Mario Krenn , Mehul Malik , Manuel Erhard , Anton Zeilinger

When light is transmitted through optically inhomogeneous and anisotropic media the spatial distribution of light can be modified according to its input polarization state. A complete analysis of this process, based on the paraxial…

Quantum Physics · Physics 2011-02-08 Gabriel F. Calvo , Antonio Picón

Orbit-based methods are widespread in strong-field laser-matter interaction. They provide a framework in which photoelectron momentum distributions can be interpreted as the quantum interference between different semi-classical pathways the…

Atomic Physics · Physics 2024-10-03 T. Rook , D. Habibović , C. Figueira de Morisson Faria

We study the fundamental limits of the precision of estimating parameters of a quantum matter system when it is probed by a travelling pulse of quantum light. In particular, we focus on the estimation of the interaction strength between the…

Quantum Physics · Physics 2023-06-05 Francesco Albarelli , Evangelia Bisketzi , Aiman Khan , Animesh Datta

The coupling between Angstrom-sized electron probes and spin polarised electronic transitions shows that the inelastically scattered probe is in a mixed state containing electron vortices with non-zero orbital angular momentum. These…

Mesoscale and Nanoscale Physics · Physics 2013-05-30 Peter Schattschneider , Bernhard Schaffer , Inga Ennen , Johan Verbeeck

We describe an opto-electronic structure in which charge and spin degrees of freedom in electrical gate-defined quantum dots can be coherently coupled to light. This is achieved via electron-electron interaction or via electron tunneling…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Hans-Andreas Engel , Jacob M. Taylor , Mikhail D. Lukin , Atac Imamoglu

We analyze the effects of electron-electron and electron-phonon interactions in the dynamics of a system of two or three electrons that can be trapped to a localized state and detrapped to ab extended band states of a quantum dot using a…

Mesoscale and Nanoscale Physics · Physics 2025-12-11 R. Carmina Monreal

We use the entanglement measure to study the evolution of quantum correlations in two-electron axially-symmetric parabolic quantum dots under a perpendicular magnetic field. We found that the entanglement indicates on the shape transition…

Mesoscale and Nanoscale Physics · Physics 2013-05-09 R. G. Nazmitdinov , N. S. Simonovic , A. R. Plastino , A. V. Chizhov

The tunability of materials properties by light promises a wealth of future applications in energy conversion and information technology. Strongly correlated materials such as transition-metal dichalcogenides (TMDCs) offer optical control…

Materials Science · Physics 2023-07-10 Till Domröse , Thomas Danz , Sophie F. Schaible , Kai Rossnagel , Sergey V. Yalunin , Claus Ropers

Quantum light propagation through turbulent atmosphere has become a subject of intensive research, spanning both theoretical and experimental studies. This interest is driven by its important applications in free-space quantum…

Quantum Physics · Physics 2025-11-24 A. A. Semenov , M. Klen , I. Pechonkin

The degree of entanglement of an electron with a hole in a vertically coupled self-assembled dot molecule is shown to be tunable by an external electric field. Using atomistic pseudopotential calculations followed by a configuration…

Materials Science · Physics 2009-11-11 Gabriel Bester , Alex Zunger

An ab initio simulation of strong-field photodissociation of diatomic molecules was developed, inspired by recent dissociation experiments of F2-. The transition between electronic states was modeled, including the laser pulse and…

Atomic Physics · Physics 2020-06-26 Bar Ezra , Shimshon Kallush , Ronnie Kosloff

Various projects under study require an angular-momentum-dominated electron beam generated by a photoinjector. Some of the proposals directly use the angular-momentum-dominated beams (e.g. electron cooling of heavy ions), while others…

Accelerator Physics · Physics 2008-11-26 Y. -E Sun , P. Piot , K. -J. Kim , N. Barov , S. Lidia , J. Santucci , R. Tikhoplav , J. Wennerberg

Exact stationary solutions of the wave equation are obtained to describe the interaction between magnetic moment of elementary particle and circularly polarized photons. The obtained solutions substantially modify the conventional model of…

Quantum Physics · Physics 2009-01-30 O. V. Kibis

We demonstrate optical control of the geometric phase acquired by one of the spin states of an electron confined in a charge-tunable InAs quantum dot via cyclic 2pi excitations of an optical transition in the dot. In the presence of a…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Erik D. Kim , Katherine Truex , Xiaodong Xu , Bo Sun , D. G. Steel , A. S. Bracker , D. Gammon , L. J. Sham

We describe and present the first observational evidence that light propagating near a rotating black hole is twisted in phase and carries orbital angular momentum. The novel use of this physical observable as an additional tool for the…

General Relativity and Quantum Cosmology · Physics 2021-11-02 Fabrizio Tamburini , Fabiano Feleppa , Bo Thidé

Studying quantum properties in solid-state systems is a significant avenue for research. In this scenario, double quantum dots (DQDs) appear as a versatile platform for technological breakthroughs in quantum computation and nanotechnology.…

Quantum Physics · Physics 2023-02-07 Zakaria Dahbi , Maron F. Anka , Mostafa Mansour , Moises Rojas , Clebson Cruz

Many atomic processes result in the emission of photons. Analysis of the properties of emitted photons, such as energy and angular distribution as well as polarization, is regarded as a powerful tool for gaining more insight into the…

Atomic Physics · Physics 2018-04-18 V. A. Zaytsev , A. S. Surzhykov , V. M. Shabaev , Th. Stöhlker

We propose a method for measuring entangled vibronic quantum states of a trapped atom. It is based on the nonlinear dynamics of the system that appears by resonantly driving a weak electronic transition. The proposed technique allows the…

Quantum Physics · Physics 2009-10-30 S. Wallentowitz , R. L. de Matos Filho , W. Vogel

We investigate transient transport of electrons through a single-quantum-dot controlled by a plunger gate. The dot is embedded in a finite wire that is weakly coupled to leads and strongly coupled to a single cavity photon mode. A…

Mesoscale and Nanoscale Physics · Physics 2013-11-15 Nzar Rauf Abdullah , Chi-Shung Tang , Andrei Manolescu , Vidar Gudmundsson