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We consider an array of $N_e$ non-interacting qubits or emitters that are coupled to a one-dimensional cavity array with tunneling energy $J$ and non-linearity of strength $U$. The number of cavities is assumed to be larger than the number…

Quantum Physics · Physics 2024-01-09 J. Talukdar , D. Blume

We investigate the scattering processes of two photons in a one-dimensional waveguide coupled to two giant atoms. By adjusting the accumulated phase shifts between the coupling points, we are able to effectively manipulate the…

Quantum Physics · Physics 2024-03-01 Wenju Gu , Lei Chen , Zhen Yi , Sujing Liu , Gao-xiang Li

We derive a rigorous theory of the interaction between photons and spatially extended excitons confined in quantum dots in inhomogeneous photonic materials. We show that, beyond the dipole approximation, the radiative decay rate is…

Mesoscale and Nanoscale Physics · Physics 2012-08-10 Søren Stobbe , Philip T. Kristensen , Jakob E. Mortensen , Jørn M. Hvam , Jesper Mørk , Peter Lodahl

Atom-photon bound states arise from the coupling of quantum emitters to the band edge of dispersion-engineered waveguides. Thanks to their tunable-range interactions, they are promising building blocks for quantum simulators. Here, we study…

Excitons -- bound electron-hole pairs -- play a central role in light-matter interaction phenomena, and are crucial for wide-ranging applications from light harvesting and generation to quantum information processing. A long-standing…

Mesoscale and Nanoscale Physics · Physics 2023-08-15 Jenny Hu , Etienne Lorchat , Xueqi Chen , Kenji Watanabe , Takashi Taniguchi , Tony F. Heinz , Puneet A. Murthy , Thibault Chervy

We derive and analyze the Born-Markov master equation for a quantum harmonic oscillator interacting with a bath of independent two-level systems. This hitherto virtually unexplored model plays a fundamental role as one of the four…

Quantum Physics · Physics 2008-02-20 Maximilian Schlosshauer , Andrew P. Hines , Gerard J. Milburn

Cooperative phenomena stemming from radiation-field-mediated coupling between individual quantum emitters are presently attracting broad interest for on-chip photonic quantum memories and long-range entanglement. Common to these…

An array of $N$ closely spaced dipole coupled quantum emitters exhibits super- and subradiance with characteristic tailorable spatial radiation patterns. Optimizing their geometry and distance with respect to the spatial profile of a near…

Quantum Physics · Physics 2019-03-08 David Plankensteiner , Christian Sommer , Helmut Ritsch , Claudiu Genes

Quantum emitters in solid-state crystals have recently attracted a lot of attention due to their simple applicability in optical quantum technologies. The polarization of single photons generated by quantum emitters is one of the key…

Implementations of solid state quantum optics provide us with devices where qubits are placed at fixed positions in photonic or plasmonic one dimensional waveguides. We show that solely by controlling the position of the qubits and with the…

Mesoscale and Nanoscale Physics · Physics 2013-02-21 A. Gonzalez-Tudela , D. Porras

Motivated by recent experimental measurement of the intrinsic excitonic wave-function in 2D Transition-metal dichalcogenides (TMDs) by angle-resolved photoemission spectroscopy (ARPES), we developed a theoretical study to resolve some…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 Nizar Chaouachi , Sihem Jaziri

In this paper, we study the exact entanglement dynamics of two two-level atoms in a dissipative cavity. We use the Gardiner-Collett Hamiltonian to model the dissipative cavity, in which, we assume that the two atoms resonantly interact with…

Quantum Physics · Physics 2016-07-04 Alireza Nourmandipour , M. K. Tavassoly

We show that pairs of atoms optically excited to the Rydberg states can strongly interact with each other via effective long-range dipole-dipole or van der Waals interactions mediated by their non-resonant coupling to a common microwave…

Quantum Physics · Physics 2008-04-29 David Petrosyan , Michael Fleischhauer

The interaction of two excited hydrogen atoms in metastable states constitutes a theoretically interesting problem because of the quasi-degenerate 2P_{1/2} levels which are removed from the 2S states only by the Lamb shift. The total…

Atomic Physics · Physics 2017-02-15 U. D. Jentschura , V. Debierre , C. M. Adhikari , A. Matveev , N. Kolachevsky

We propose a quantum science platform utilizing the dipole-dipole coupling between donor-acceptor pairs (DAPs) in wide bandgap semiconductors to realize optically controllable, long-range interactions between defects in the solid state. We…

Quantum Physics · Physics 2024-01-31 Anil Bilgin , Ian Hammock , Jeremy Estes , Yu Jin , Hannes Bernien , Alexander High , Giulia Galli

We describe the dynamics of a qubit interacting with a bosonic mode coupled to a zero-temperature bath in the deep strong coupling (DSC) regime. We provide an analytical solution for this open system dynamics in the off-resonance case of…

Quantum Physics · Physics 2013-03-05 M. Bina , G. Romero , J. Casanova , J. J. Garcia-Ripoll , A. Lulli , F. Casagrande , E. Solano

We describe how quantum dot semiconductor cavity systems can be engineered to realize anisotropy-induced dipole-dipole coupling between orthogonal dipole states in a single quantum dot. Quantum dots in single-mode cavity structures as well…

Quantum Physics · Physics 2017-02-10 Stephen Hughes , Girish Agarwal

We introduce a generalized Dicke-like model to describe two-level systems coupled with a single bosonic mode. In addition, the two-level systems mutually interact via direct dipole-dipole interaction. We apply the model to an ensemble of…

Mesoscale and Nanoscale Physics · Physics 2017-11-22 Marek Nečada , Jani-Petri Martikainen , Päivi Törmä

Coherent interactions between quantum emitters in tailored photonic structures is a fundamental building block for future quantum technologies, but remains challenging to observe in complex solid-state environments, where the role of…

Quantum Physics · Physics 2022-11-23 Xiao-Liu Chu , Vasiliki Angelopoulou , Peter Lodahl , Nir Rotenberg

Photon-mediated dipole-dipole interactions arise from atom-light interactions, which are universal and prevalent in a wide range of open quantum systems. This pairwise and long-range spin-exchange interaction results from multiple light…

Quantum Physics · Physics 2025-03-11 H. H. Jen
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