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In this work, a model to study the coupling between a semiconductor qubit and two timedependent electric fields is developed. By using it in the resonantly monochromatic double dressing regime, control of the local density of optical states…

Mesoscale and Nanoscale Physics · Physics 2016-10-05 Hanz Y. Ramírez

The capability to design spectrally controlled photon emission is not only fundamentally interesting for understanding frequency-encoded light-matter interactions, but also is essential for realizing the preparation and manipulation of…

Quantum Physics · Physics 2025-02-17 Qing-Yang Qiu , Li-Li Zheng , Ying Wu , Xin-You Lu

We analyze a general method for the dissipative preparation and stabilization of volume-law entangled states of fermionic and qubit lattice systems in 1D (and higher dimensions for fermions). Our approach requires minimal resources:…

Quantum Physics · Physics 2022-05-02 Andrew Pocklington , Yu-Xin Wang , Yariv Yanay , Aashish A. Clerk

We present an ideal realization of the Tavis-Cummings model in the absence of atom number and coupling fluctuations by embedding a discrete number of fully controllable superconducting qubits at fixed positions into a transmission line…

Mesoscale and Nanoscale Physics · Physics 2009-08-18 J. M. Fink , R. Bianchetti , M. Baur , M. Goeppl , L. Steffen , S. Filipp , P. J. Leek , A. Blais , A. Wallraff

Dark state protection has been proposed as a mechanism to increase the power output of light harvesting devices by reducing the rate of radiative recombination. Indeed many theoretical studies have reported increased power outputs in dimer…

Quantum Physics · Physics 2019-07-24 D. M. Rouse , E. M. Gauger , B. W. Lovett

While designing the energy-momentum relation of photons is key to many linear, non-linear, and quantum optical phenomena, a new set of light-matter properties may be realized by employing the topology of the photonic bath itself. In this…

We propose a simple scheme for the dissipative generation of entangled states of multiple emitters coupled to a waveguide. Our approach exploits collective interactions arising from the formation of subradiant and superradiant excited…

There are well-known dark states in the even-qubit Dicke models, which are the products of the two-qubit singlets and a Fock state, where the qubits are decoupled from the photon field. These spin singlets can be used to store quantum…

Quantum mechanics allows for light-matter setups that hold excitations without releasing them as light. Arising from destructive interference processes, they are best seen in a Tavis-Cummings-like setup where two-level atoms (or qubits) are…

Quantum Physics · Physics 2025-09-19 L. Theerthagiri , Rajesh Narayanan , R. Ganesh

Light dark sectors in thermal contact with the Standard Model naturally produce the observed relic dark matter abundance and are the targets of a broad experimental search program. A key light dark sector model is the pseudo-Dirac fermion…

High Energy Physics - Phenomenology · Physics 2021-09-03 Masha Baryakhtar , Asher Berlin , Hongwan Liu , Neal Weiner

We propose the implementation of a light source, which can deterministically generate a rich variety of multi-mode quantum states. The desired states are encoded in the collective population of different ground hyperfine states of an atomic…

Quantum Physics · Physics 2010-04-16 Anne E. B. Nielsen , Klaus Mølmer

Cooperative effects such as super(sub)radiance in quantum systems arise from the interplay among quantum emitters. While bright superradiant states have been extensively studied and yielded significant insights into cooperative phenomena,…

Circuit quantum electrodynamics ('circuit QED') describes the quantum mechanics and quantum field theory of superconducting electrical circuits operating in the microwave regime near absolute zero temperature. It is the analog of cavity QED…

Quantum Physics · Physics 2017-10-10 S. M. Girvin

Quantum emitters coupled to waveguides with nonlinear dispersion show rich quantum dynamics with the promise of implementing non-trivial non-Markovian quantum models. Recent advances in engineered photonic environments now allow the…

Recently, the subradiant states of one-dimensional two-level atom chains coupled to light modes were found to have decay rates obeying a universal scaling, and an unexpected fermionic character of the multiply-excited subradiant states was…

Quantum Physics · Physics 2019-05-23 Yu-Xiang Zhang , Klaus Mølmer

A striking feature of cavity quantum electrodynamics is the existence of atom-photon bound states, which typically form when the coupling between the atom and its environment are strong enough that after de-excitation the atom can ``grab''…

Quantum Physics · Physics 2026-02-24 Savannah Garmon , Gonzalo Ordonez , Kenichi Noba

We study the coherent scattering process of a single photon confined in an one-dimensional (1D) coupled cavity-array, where a $\Lambda$-type three-level atom is placed inside one of the cavities in the array and behaves as a functional…

Quantum Physics · Physics 2008-11-10 Z. R. Gong , H. Ian , Lan Zhou , C. P. Sun

Waveguide quantum electrodynamics (wQED) has become a central platform for studying collective light-matter interactions in low-dimensional photonic environments. While conventional wQED systems rely on uniform chirality or reciprocal…

Quantum Physics · Physics 2026-04-07 I Gusti Ngurah Yudi Handayana , Ya-Tang Yu , Wei-Hsuan Chung , H. H. Jen

We consider dynamics of a disordered ensemble of qubits interacting with single mode photon field, which is described by exactly solvable inhomogeneous Dicke model. In particular, we concentrate on the crossover from few-qubit systems to…

Quantum Physics · Physics 2017-09-07 A. A. Zhukov , D. S. Shapiro , W. V. Pogosov , Yu. E. Lozovik

The coupling of two-level quantum systems to the thermal environment is a fundamental problem, with applications ranging from qubit state preparation to spin models. However, for the elementary problem of the thermodynamics of an ensemble…

Quantum Gases · Physics 2025-10-29 Christian Kurtscheid , Andreas Redmann , Frank Vewinger , Julian Schmitt , Martin Weitz