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The coherent quantum dynamics of a single bosonic spin variable, subject to a constraint derived from the quantum spherical model of a ferromagnet, and coupled to an external heat bath, is studied through the Lindblad equation for the…

Statistical Mechanics · Physics 2016-02-12 Sascha Wald , Malte Henkel

We investigate the effect of electron-phonon interactions on the coherence properties of single photons emitted from a semiconductor cavity QED system, i.e. a quantum dot embedded in an optical cavity. The degree of indistinguishability,…

Mesoscale and Nanoscale Physics · Physics 2014-07-23 P. Kaer , J. Mork

A model for quantum Zeno effect based upon an effective Schr\"odinger equation originated by the path-integral approach is developed and applied to a two-level system simultaneously stimulated by a resonant perturbation. It is shown that…

Quantum Physics · Physics 2009-10-30 Roberto Onofrio , Carlo Presilla , Ubaldo Tambini

There has been a recent upsurge of interest in the quantum properties of magnons for quantum information processing. An important issue is to examine the stability of quantum states of magnons against various relaxation and dephasing…

Mesoscale and Nanoscale Physics · Physics 2022-12-27 H. Y. Yuan , W. P. Sterk , Akashdeep Kamra , Rembert A. Duine

A fully quantum multiphonon up-pumping model is proposed to characterize coherent energy transfer in energetic materials (EMs) subjected to external shock. After eliminating the degrees of freedom of the phonon bath within a mean-field…

Quantum Physics · Physics 2026-05-20 Jiong Cheng , Yanqiang Yang , Wenlin Li , Xun Li

Through a combination of experiment and theory we establish the possibility of achieving strong tuning of Fano resonances (FRs), by allowing their usual two-path geometry to interfere with an additional, 'intruder', continuum. As the…

Mesoscale and Nanoscale Physics · Physics 2014-03-12 J. Fransson , M. -G. Kang , Y. Yoon , S. Xiao , Y. Ochiai , J. L. Reno , N. Aoki , J. P. Bird

We show that the effect of a Gaussian Bosonic environment linearly coupled to a quantum system can be simulated by a stochastic Lindblad master equation characterized by a set of ancillary Bosonic modes initially at zero temperature and…

Quantum Physics · Physics 2023-10-31 Si Luo , Neill Lambert , Pengfei Liang , Mauro Cirio

Any quantum-confined electronic system coupled to the electromagnetic continuum is subject to radiative decay and renormalization of its energy levels. When coupled to a cavity, these quantities can be strongly modified with respect to…

Quantum Physics · Physics 2017-08-23 Moein Malekakhlagh , Alexandru Petrescu , Hakan E. Türeci

General concept of Fano resonance is considered so that to show the possibility of this resonance in space. Using a recently found solution for a Bessel wave beam impinging a dielectric sphere, we analyze the electromagnetic fields near a…

Optics · Physics 2021-08-04 V. Klimov , R. Heydarian , C. Simovski

We propose a novel quantum electrodynamics (QED) platform where quantum emitters interact with a Hofstadter-ladder waveguide. We demonstrate several intriguing phenomena stemming from the exotic dispersion relation and vacuum mode…

Quantum Physics · Physics 2022-10-06 Xin Wang , Zhao-Min Gao , Jia-Qi Li , Huai-Bing Zhu , Hong-Rong Li

Superconducting circuit quantum electrodynamical (cQED) platforms present a persistent modeling challenge: the intrinsic nonlinearity of the Josephson potential couples to a dissipative electromagnetic environment in ways that resist both…

Quantum Physics · Physics 2026-05-14 M. Gabriela Boada G. , Nicolas Dirnegger , Andrea Delgado , Prineha Narang

We present a new approach to dielectric metasurface design that relies on a single resonator per unit cell and produces robust, high quality-factor Fano resonances. Our approach utilizes symmetry breaking of highly symmetric resonator…

The interaction of a quantum system, which is not accessible by direct measurement, with an external probe can be exploited to infer specific features of the system itself. We introduce a probing scheme based on the emergence of spontaneous…

Quantum Physics · Physics 2016-11-21 Gian Luca Giorgi , Fernando Galve , Roberta Zambrini

The Fano line profiles, originally discovered in the context of photoionization, have been found to occur in a large class of systems like resonators, metamaterials, plasmonics. We demonstrate the existence of such resonances in cavity…

Optics · Physics 2013-06-11 Kenan Qu , G. S. Agarwal

Electromagnetically induced transparency has the unique ability to optically control transparency windows with low light in atomic systems. However, its practical applications in quantum physics and information science are limited due to…

Spectroscopic signatures associated with symmetric Lorentzian and asymmetric Fano line shapes are ubiquitous. Distinct features of Fano resonances in contrast with conventional symmetric resonances have found several applications in…

Optics · Physics 2021-12-10 Davis M. Welakuh , Prineha Narang

Classical emulation of a ubiquitous quantum mechanical phenomenon of double-continuum Fano (DCF) interference using metasurfaces is experimentally realized by engineering the near-field interaction between two bright and one dark plasmonic…

Materials Science · Physics 2014-09-05 Nihal Arju , Tzuhsuan Ma , Alexander Khanikaev , David Purtseladze , Gennady Shvets

For a bosonic (fermionic) open system in a bath with many bosons (fermions) modes, we derive the exact non-Markovian master equation in which the memory effect of the bath is reflected in the time dependent decay rates. In this approach,…

Quantum Physics · Physics 2013-01-29 Li-Ping Yang , C. Y. Cai , D. Z. Xu , Wei-Min Zhang , C. P. Sun

We generalize the optimized effective potential (OEP) formalism in the quantum electrodynamical density functional theory (QEDFT) to the case of continuous distribution of photon modes, and study its applicability to dissipative dynamics of…

Mesoscale and Nanoscale Physics · Physics 2022-03-14 A. Kudlis , I. Iorsh , I. V. Tokatly

A novel scheme is proposed for dissipative generation of maximally entanglement between two Rydberg atoms in the context of cavity QED. The spontaneous emission of atoms combined with quantum Zeno dynamics and Rydberg antiblockade…

Quantum Physics · Physics 2017-07-05 X. Q. Shao , J. H. Wu , X. X. Yi