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Floquet engineering of cavity magnon-polaritons by periodically modulating the magnon frequency has recently attracted much interest as a way to manipulate the energy spectrum of magnon-photon hybrid systems. However, modulating the…

Mesoscale and Nanoscale Physics · Physics 2026-05-08 L. Hackner , A. R. Myatt , W. Wustmann , N. J. Lambert

Semiconductor microresonators embedding quantum wells can host tightly confined and mutually interacting excitonic, optical and mechanical modes at once. We theoretically investigate the case where the system operates in the strong…

Frequency modulated (FM) frequency combs constitute an exciting alternative to generate equidistant spectra. The full set of Maxwell-Bloch equations is reduced to a single master equation for FM combs with fast dynamics to provide insight…

Optics · Physics 2019-12-18 Nikola Opačak , Benedikt Schwarz

The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum via tunneling induced by a strong electric field. Unfortunately, as the required field strength is extremely large, this fundamental…

Mesoscale and Nanoscale Physics · Physics 2018-01-18 Malte F. Linder , Axel Lorke , Ralf Schützhold

Bistability of nonlinear resonantly driven oscillator in the presence of external noise is analyzed by means of classical Fokker-Planck equation in quasienergy space with account for tunneling effects and by quantum master equation in…

Mesoscale and Nanoscale Physics · Physics 2019-08-12 Natalya S. Maslova , Evgeny V. Anikin , Nikolay A. Gippius , Igor M. Sokolov

We have developed a system for producing amplified pulses of frequency-chirped light at 780 nm on nanosecond timescales. The system starts with tunable cw laser light and employs a pair of fiber-based phase modulators, a semiconductor…

Optics · Physics 2024-06-19 B. S. Clarke , P. L. Gould

We investigate the mutiphoton process between different Bloch states in an amplitude modulated optical lattice. In the experiment, we perform the modulation with more than one frequency components, which includes a high degree of freedom…

Quantum Gases · Physics 2015-04-14 Linxiao Niu , Dong Hu , Shengjie Jin , Xiangyu Dong , Xuzong Chen , Xiaoji Zhou

The $e^+e^-$ pair production by a probe photon traversing a linearly polarized laser pulse is treated as generalized nonlinear Breit-Wheeler process. For short laser pulses with very few oscillations of the electromagnetic field we find…

High Energy Physics - Phenomenology · Physics 2012-06-04 T. Nousch , D. Seipt , B. Kampfer , A. I. Titov

Near-future high-intensity lasers offer prospects for the observation of nonlinear Breit-Wheeler pair production in an overcritical field regime, where the quantum nonlinearity parameter substantially exceeds unity. This experimentally yet…

High Energy Physics - Phenomenology · Physics 2025-05-12 I. Elsner , A. Golub , S. Villalba-Chávez , C. Müller

We investigate the enhancement of the dissipative soliton energy scalability by the injection of a low-power single-mode seed synchronized with a chirped-pulse oscillator round-trip. It is demonstrated that a threshold-like transition to…

We study nonperturbative multiphoton electron-positron pair creation in ultrastrong electromagnetic fields formed by two counterpropagating pulses with elliptic polarization. Our numerical approach allows us to take into account the…

Atomic Physics · Physics 2015-06-25 Anton Wöllert , Heiko Bauke , Christoph H. Keitel

The cross section for muon pair productions by electrons scattering over photons, $\sigma_{MPP}$, is calculated analytically in the leading order. It is pointed out that for the center-of-mass energy range, $s \geq 5 m^{2}_{\mu}$, the cross…

High Energy Physics - Phenomenology · Physics 2009-11-07 H. Athar , G. -L. Lin , J. -J. Tseng

We study electron-positron pair production in polar caps of energetic pulsars to determine the maximum multiplicity of pair plasma a pulsar can produce under the most favorable conditions. This paper complements and updates our study of…

High Energy Astrophysical Phenomena · Physics 2019-01-23 A. N. Timokhin , A. K. Harding

High-energy-density electron-positron pair plasma production and its dynamics in a thin foil illuminated by two counter-propagating laser pulses are investigated through multi-dimensional particle-in-cell simulations. We compare the…

Plasma Physics · Physics 2020-07-07 W. Y. Liu , W. Luo , T. Yuan , J. Y. Yu , M. Chen , Z. M. Sheng

The role of polariton-electron scattering on the performance characteristics of an electrically injected GaAs-based quantum well microcavity diode in the strong coupling regime has been investigated. An electron gas is introduced in the…

Mesoscale and Nanoscale Physics · Physics 2015-06-11 Ayan Das , Bo Xiao , Sishir Bhowmick , Pallab Bhattacharya

Based on the quantum mechanical scattering model, the dynamical assist effect and the multiple-slit interference effect in electron-positron pair production from vacuum are generalized to vacuum pair production of charged scalar bosons. For…

Quantum Physics · Physics 2013-12-11 Zi-Liang Li , Ding Lu , Bai-Song Xie

The generation of the narrowband strong-correlated biphotons via spontaneous four-wave mixing can be effectively controlled and enhanced by an additional driving field which drives a transition with its upper level being a Rydberg state. We…

Quantum Physics · Physics 2024-02-21 Ke-Shuang Cui , Xiao-Jun Zhang , Jin-Hui Wu

We describe a mechanism by which an electrical bias voltage applied across a unipolar semiconductor quantum well can drive an exciton or polariton supercurrent. The mechanism depends on the properties of electronic quasiparticles in quantum…

Mesoscale and Nanoscale Physics · Physics 2017-10-17 Ming Xie , David Snoke , A. H. MacDonald

Organic semiconductors have the remarkable property that their optical excitation not only generates charge-neutral electron-hole pairs (excitons) but also charge-separated polaron pairs with high yield. The microscopic mechanisms…

We vary the time-frequency mode structure of ultrafast pulse-pumped modulational instability (MI) twin beams in an argon-filled hollow-core kagom\'e-style PCF by adjusting the pressure, pump pulse chirp, fiber length and parametric gain.…

Quantum Physics · Physics 2017-05-10 Martin A. Finger , Nicolas Y. Joly , Philip St. J. Russell , Maria V. Chekhova