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This paper considers the propagation of excitons in linear chains of QDs with a side defect, located on a dielectric substrate. This configuration is suitable for spatially selective excitation of the system by pulsed optical radiation…

介观与纳米尺度物理 · 物理学 2026-02-17 Aleksey Vlasov , Pavel Golovinski

Modification of the photon dispersion relation in chiral matter enables $1\to 2$ scattering. As a result, the single fermion and photon states are unstable to photon radiation and pair production respectively. In particular, a fast fermion…

高能物理 - 唯象学 · 物理学 2018-11-14 Kirill Tuchin

In nanostructures, the light-matter interaction can be engineered to be chiral. In the fully quantum regime, a chiral one-dimensional atom, a photon propagating in one direction interacts with the atom; a photon propagating in the other…

The generic behavior of purely dissipative open quantum many-body systems with local dissipation processes can be investigated using random matrix theory, revealing a hierarchy of decay timescales of observables organized by their…

量子物理 · 物理学 2024-02-12 Nick D. Hartmann , Jimin L. Li , David J. Luitz

We study the collective spontaneous emission of three identical two-level atoms initially prepared in the excited states by measuring Glauber's third-order photon correlation function. Assuming two atoms at sub-wavelength distance from each…

量子物理 · 物理学 2022-04-06 Manuel Bojer , Lukas Götzendörfer , Romain Bachelard , Joachim von Zanthier

We show how strong light-mediated resonant dipole-dipole interactions between atoms can be utilized in a control and storage of light. The method is based on a high-fidelity preparation of a collective atomic excitation in a single…

原子物理 · 物理学 2016-12-06 G. Facchinetti , S. D. Jenkins , J. Ruostekoski

Dissipative and unitary processes define the evolution of a many-body system. Their interplay gives rise to dynamical phase transitions and can lead to instabilities. We discovered a non-stationary state of chiral nature in a synthetic…

Dynamics of a particle in a perfect chain with one nonlinear impurity and in a perfect nonlinear chain under the action of dc field is studied numerically. The nonlinearity appears due to the coupling of the electronic motion to optical…

凝聚态物理 · 物理学 2009-10-31 P. K. Datta , A. M. Jayannavar

In three dimensions, dipole-dipole interactions which alter atomic level shifts and spontaneous decay rates only persist over distances comparable to the wavelength of the emitted light. In this paper we show that it is possible to…

量子物理 · 物理学 2025-01-30 Nicholas Furtak-Wells , Benjamin Dawson , Thomas Mann , Gin Jose , Almut Beige

Abbreviated Abstract: We study correlated states in a circular and linear-chain configuration of identical two-level atoms containing the energy of a single quasi-resonant photon in the form of a collective excitation, where the collective…

量子物理 · 物理学 2007-05-23 Hanno Hammer

Chirality, or handedness, is a geometrical property denoting a lack of mirror symmetry. Chirality is ubiquitous in nature and is associated with the non-reciprocal interactions observed in complex systems ranging from biomolecules to…

量子物理 · 物理学 2024-08-08 Jonah S. Peter , Stefan Ostermann , Susanne F. Yelin

We consider the non-equilibrium dynamics of a driven dissipative spin chain with chiral coupling to a 1D bosonic bath, and its atomic implementation with a two-species mixture of cold quantum gases. The reservoir is represented by a…

量子物理 · 物理学 2014-12-09 Tomás Ramos , Hannes Pichler , Andrew J. Daley , Peter Zoller

The dynamics of a system composed of two coupled optical cavities, each containing a single two-level atom, is studied over a wide range of detuning and coupling values. A description of the field in terms of delocalized modes reveals that…

量子物理 · 物理学 2009-11-13 C. D. Ogden , E. K. Irish , M. S. Kim

Atoms interact with each other through the electromagnetic field, creating collective states that can radiate faster or slower than a single atom, i.e. super- and sub-radiance. The generation and control of such states by engineering the…

Spontaneous emission is one of the most fundamental out-of-equilibrium processes in which an excited quantum emitter relaxes to the ground state due to quantum fluctuations. In this process, a photon is emitted that can interact with other…

介观与纳米尺度物理 · 物理学 2023-12-05 Erik Petrovish Navarro-Barón , Herbert Vinck-Posada , Alejandro González-Tudela

Using the nonperturbative method, we study the exact entanglement dynamics of two two-level dipole-dipole interacting atoms coupled to a common non-Markovian reservoir with different coupling strengths. Besides analyzing the conditions for…

量子物理 · 物理学 2009-11-13 Yang Li , Jiang Zhou , Hong Guo

Superradiance, in which the collective behavior of emitters can generate enhanced radiative decay, was first predicted by a model, now known as the Dicke model, that contains a collection of two-level systems (the emitters) all interacting…

光学 · 物理学 2025-02-05 Xuecheng Tao , John P. Philbin , Prineha Narang

Dicke superradiance in ordered atomic arrays is a phenomenon where atomic synchronization gives rise to a burst in photon emission. This superradiant burst only occurs if there is one -- or just a few -- dominant decay channels. For a fixed…

量子物理 · 物理学 2024-09-12 Eric Sierra , Stuart J. Masson , Ana Asenjo-Garcia

We study the dynamics of up to two Rydberg excitations and the correlation growth in a chain of atoms coupled to a photonic crystal waveguide. In this setup, an excitation can hop from one atom to another via exponentially decaying exchange…

量子气体 · 物理学 2020-09-02 Yashwant Chougale , Jugal Talukdar , Tomás Ramos , Rejish Nath

The dynamics of two two-level dipole-dipole interacting atoms coupled to a common electromagnetic bath and closely located inside a lossy cavity, is reported. Initially injecting only one excitation in the two atoms-cavity system, loss…

量子物理 · 物理学 2009-11-10 S. Nicolosi , A. Napoli , A. Messina , F. Petruccione