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Related papers: Non-paraxial effects on laser-qubit operations

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The paper aims at presenting a didactic and self-contained overview of Gauss-Hermite and Gauss-Laguerre laser beam modes. The usual textbook approach for deriving these modes is to solve the Helmoltz electromagnetic wave equation within the…

Optics · Physics 2007-05-23 Francesco Pampaloni , Joerg Enderlein

With the rapid development of high-power petawatt class lasers worldwide, exploring physics in the strong field QED regime will become one of the frontiers for laser-plasma interactions research. Particle-in-cell codes, including quantum…

High Energy Physics - Phenomenology · Physics 2023-10-17 Qian Qian , Daniel Seipt , Marija Vranic , Thomas E. Grismayer , Tom G. Blackburn , Christopher P. Ridgers , Alexander G. R. Thomas

We report on the first realization of a novel neutral atom qubit encoded in the metastable fine-structure states ${^3\rm{P}_0}$ and ${^3\rm{P}_2}$ of single $^{88}$Sr atoms trapped in an optical tweezer. Raman coupling of the qubit states…

Selective single beam tweezers open tremendous perspectives in microfluidics and microbiology for the micromanipulation, assembly and mechanical properties testing of microparticles, cells and microorganisms. In optics, single beam optical…

Applied Physics · Physics 2022-05-23 Zhixiong Gong , Michael Baudoin

Oscillatory dynamics is a key tool in optical tweezers applications. It is usually implemented by mechanical interventions that cannot be optically controlled. In this work we show that Germanium semiconductor beads behave as optically…

We demonstrate rapid loading of a small array of optical tweezers with a single $^{87}$Rb atom per site. We find that loading efficiencies of up to 90% per tweezer are achievable in less than 170 ms for traps separated by more than $1.7…

Atomic Physics · Physics 2015-08-19 Brian J. Lester , Niclas Luick , Adam M. Kaufman , Collin M. Reynolds , Cindy A. Regal

The transversely confined propagating light modes of a nano-photonic optical waveguide or nanofiber can mediate effectively infinite-range forces. We show that for a linear chain of particles trapped within the waveguide's evanescent field,…

Quantum Physics · Physics 2021-05-10 Daniela Holzmann , Matthias Sonnleitner , Helmut Ritsch

We study the double ionization of atoms subjected to circularly polarized (CP) laser pulses. We analyze two fundamental ionization processes: the sequential (SDI) and non-sequential (NSDI) double ionization in the light of the rotating…

Atomic Physics · Physics 2020-09-30 J. Dubois , C. Chandre , T. Uzer

A theoretical study of power loss from periphery of an ultrashort pulse laser beam and temporally resolved defocussing produced by laser induced plasma are performed using paraxial approximation. Our analysis incorporate consideration of…

Optics · Physics 2014-04-02 V. V. Semak , M. N. Shneider

We analyze, quantum mechanically, the dynamics of ionization with a strong, circularly polarized, laser field. We show that the main source for non-adiabatic effects is connected to an effective barrier lowering due to the laser frequency.…

Atomic Physics · Physics 2014-09-26 Francois Mauger , A. D. Bandrauk

Transmission of He-Ne (632 nm, 10 mW) Gaussian laser beam through Hexane and Water based magnetic nanofluids containing Fe3O4 nanoparticles show strong non-linear and magneto-optical effects. Application of external magnetic field (up to…

Soft Condensed Matter · Physics 2015-09-17 Chintamani Pai , H. Muthurajan , Nooris Momin , Radha Srinivasan , R. Nagarajan

We present a detailed theoretical and experimental study on the optical control of a trapped-ion qubit subject to thermally induced fluctuations of the Rabi frequency. The coupling fluctuations are caused by thermal excitation on three…

Quantum Physics · Physics 2015-05-30 U. Poschinger , A. Walther , M. Hettrich , F. Ziesel , F. Schmidt-Kaler

Simulating plasma physics on quantum computers is difficult because most problems of interest are nonlinear, but quantum computers are not naturally suitable for nonlinear operations. In weakly nonlinear regimes, plasma problems can be…

We report the preparation and observation of single atoms of dysprosium in arrays of optical tweezers with a wavelength of 532 nm imaged on the intercombination line at 626 nm. We use the anisotropic light shift specific to lanthanides and…

Atomic Physics · Physics 2024-02-13 Damien Bloch , Britton Hofer , Sam R. Cohen , Antoine Browaeys , Igor Ferrier-Barbut

Quantum computing in atom tweezers requires high-fidelity implementations of quantum operations. Here, we demonstrate the optimal implementation of the transition $|0\rangle \rightarrow |1\rangle$ of two levels, serving as a qubit, of an…

Quantum Physics · Physics 2024-11-07 Lia Kley , Nicolas Heimann , Aslam Parvej , Lukas Broers , Ludwig Mathey

The nonlinear dynamics of dissipative quantum systems in incoherent laser fields is studied in the framework of master equation with random model describing the laser noise and Markovian approximation for dealing with the system-bath…

Optics · Physics 2007-05-23 O. El Akramine , A. Makhoute , M. Zitane , M. Tij

Silicon-based terahertz quantum cascade lasers (QCLs) offer potential advantages over existing III-V devices. Although coherent electron transport effects are known to be important in QCLs, they have never been considered in Si-based device…

Mesoscale and Nanoscale Physics · Physics 2012-06-13 T. V. Dinh , A. Valavanis , L. J. M. Lever , Z. Ikonić , R. W. Kelsall

We investigate three-dimensional nonparaxial linear accelerating beams arising from the transverse Whittaker integral. They include different Mathieu, Weber, and Fresnel beams, among other. These beams accelerate along a semicircular…

Computational modelling has made many useful contributions to the field of optical tweezers. One aspect in which it can be applied is the simulation of the dynamics of particles in optical tweezers. This can be useful for systems with many…

Strong optical pulses at mid-infrared and terahertz frequencies have recently emerged as a powerful tool to manipulate and control the solid state and especially complex condensed matter systems with strongly correlated electrons. The…

Strongly Correlated Electrons · Physics 2016-08-22 Daniele Nicoletti , Andrea Cavalleri