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Coherent phonon (CP) generation in an undoped Si crystal is theoretically investigated to shed light on unexplored quantum-mechanical effects in the early-time region immediately after the irradiation of ultrashort laser pulse. One examines…

材料科学 · 物理学 2017-09-20 Yohei Watanabe , Ken-ichi Hino , Muneaki Hase , Nobuya Maeshima

Open quantum systems can display periodic dynamics at the classical level either due to external periodic modulations or to self-pulsing phenomena typically following a Hopf bifurcation. In both cases, the quantum fluctuations around…

量子物理 · 物理学 2021-02-24 C. Navarrete-Benlloch , R. Garcés , N. Mohseni , G. J. de Valcárcel

We study theoretically how multiple scattering of light in a disordered medium can spontaneously generate quantum correlations. In particular we focus on the case where the input state is Gaussian and characterize the correlations between…

量子物理 · 物理学 2016-05-17 Ilya Starshynov , Jacopo Bertolotti , Janet Anders

Spin echo techniques are essential for achieving long coherence times in solid-state quantum memories for light because of inhomogeneous broadening of the spin transitions. It has been suggested that unrealistic levels of precision for the…

量子物理 · 物理学 2015-05-20 Khabat Heshami , Nicolas Sangouard , Jiri Minar , Hugues de Riedmatten , Christoph Simon

In this article I investigate the novel synchronization behaviors of evolving pulse-coupled oscillator networks. Unlike previous models, the time-varying mechanism is inspired by neural network development, where seldom used links die out…

混沌动力学 · 物理学 2014-04-15 Yuanzhao Zhang

Dynamical decoupling pulse sequences have been used to extend coherence times in quantum systems ever since the discovery of the spin-echo effect. Here we introduce a method of recursively concatenated dynamical decoupling pulses, designed…

量子物理 · 物理学 2007-05-23 K. Khodjasteh , D. A. Lidar

The shortest light pulses produced to date are of the order of a few tens of attoseconds, with central frequencies in the extreme ultraviolet range and bandwidths exceeding tens of eV. They are often produced as a train of pulses separated…

Coupled oscillators are among the simplest composite quantum systems in which the interplay of entanglement and interaction may be explored. We examine the effects of coupling on fluctuations of the coordinates and momenta of the…

量子物理 · 物理学 2021-05-18 Roberto Baginski B. Santos , Vinicius S. F. Lisboa

We provide a complete and exact quantum description of coherent light scattering in a one-dimensional multi-mode transmission line coupled to a two-level emitter. Using recently developed scattering approach we discuss transmission…

量子物理 · 物理学 2015-07-07 Mikhail Pletyukhov , Vladimir Gritsev

Heralded single photon sources are the most commonly used sources for optical quantum technology applications. There is strong demand for accurate prediction of their spectral features and temporal correlations with ever increasing…

量子物理 · 物理学 2020-11-11 Chris Müller , Andreas Ahlrichs , Oliver Benson

The non-sinusoidal character oscillations appear in the transmitted, reflected and absorbed light fluxes when light pulses irradiate a semiconductor quantum well (QW), containing a large number of the equidistant energy levels of electronic…

介观与纳米尺度物理 · 物理学 2007-05-23 I. G. Lang , L. I. Korovin , D. A. Contreras-Solorio , S. T. Pavlov

Scattering of non-classical light is enabling new ways to study and control photon transport. However, advances in this field often rely on simplifying assumptions regarding the quantum light's generation and its source. In this work, we…

量子物理 · 物理学 2025-11-12 Mamoon Safadi , Nir Kuchuk , Ohad Lib , Yaron Bromberg , Arthur Goetschy

Parametric fluctuations or stochastic signals are introduced into the control pulse sequence to investigate the feasibility of random control over quantum open systems. In a large parameter error region, the out-of-order control pulses work…

量子物理 · 物理学 2014-09-19 Jun Jing , C. Allen Bishop , Lian-Ao Wu

The influence of the phase fluctuation of the pump laser on the phase-correlation between the signal and idler modes of the output fields from as non-degenerate optical parametric oscillator operating above oscillation threshold was…

量子物理 · 物理学 2009-11-13 Dong Wang , Yana Shang , Zhihui Yan , Wenzhe Wang , Xiaojun Jia , Changde Xie , Kunchi Peng

We predict that parametric sum-frequency generation of an ultra-short pulse may result from the mixing of an ultra-short optical pulse with a quasi-continuous wave control. We analytically show that the intensity, time duration and group…

光学 · 物理学 2009-11-13 Matteo Conforti , Fabio Baronio , Antonio Degasperis , Stefan Wabnitz

We consider a sequence of quantized Lorentzian pulses of non-interacting electrons impinging on a quantum point contact (QPC) and study the waiting time distribution (WTD), for any transmission and any number of pulses. As the degree of…

介观与纳米尺度物理 · 物理学 2014-07-24 Mathias Albert , Pierre Devillard

Electron quantum optics aims to realize ideas from the quantum theory of light with the role of photons being played by charge pulses in electronic conductors. Experimentally, the charge pulses are excited by time-dependent voltages,…

介观与纳米尺度物理 · 物理学 2024-06-21 Pedro Portugal , Fredrik Brange , Christian Flindt

We present a scheme to realize simultaneous quantum squeezing of light polarizations and atomic spins via a perturbed double electromagnetically induced transparency (DEIT) in a cold four-level atomic ensemble coupled with a probe laser…

量子物理 · 物理学 2023-04-05 Jinzhong Zhu , Yue Mu , Guoxiang Huang

The dependence of quantum correlation of twin beams on the pump finesse of an optical parametric oscillator is studied with a semi-classical analysis. It is found that the phase-sum correlation of the output signal and idler beams from an…

广义相对论与量子宇宙学 · 物理学 2009-11-13 Dong Wang , Yana Shang , Xiaojun Jia , Changde Xie , Kunchi Peng

In this work, we present a quantum theory for pulsed photon pair generation in a single ring resonator. Our approach combines the Heisenberg picture input-output formalism with the Ikeda mapping from classical nonlinear optics. In doing so,…

量子物理 · 物理学 2025-02-17 Youngbin Kim , Seongjin Jeon , Young-Ik Sohn