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Ultimate quantum limit for amplification: a single atom in front of a mirror
New Journal of Physics, 2021 We investigate three types of amplification processes for light fields coupling to an atom near the end of a one-dimensional (1D) semi-infinite waveguide. We consider two setups where a drive creates population inversion in the bare or dressed basis of a
Emely Wiegand +4 more
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Cavity quantum electrodynamics with color centers in diamond [PDF]
, 2020 Coherent interfaces between optical photons and long-lived matter qubits form a key resource for a broad range of quantum technologies. Cavity quantum electrodynamics (cQED) offers a route to achieve such an interface by enhancing interactions between ...
E. Janitz, M. Bhaskar, L. Childress
semanticscholar +1 more source
Quantum electrodynamical metamaterials
Physical Review A, 2023 Recent experiments have revealed ultrastrong coupling between light and matter as a promising avenue for modifying material properties, such as electrical transport, chemical reaction rates, and even superconductivity. Here, we explore (ultra)strong coupling as a means for manipulating the optical response of metamaterials based on ensembles of ...
Josephine J. Yu +3 more
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Atomic-waveguide quantum electrodynamics
Physical Review Research, 2020 Atom arrays are a new type of quantum light-matter interface. Here we propose to employ one-dimensional ordered arrays as atomic waveguides. These arrays support optical guided modes that do not decay into free space.
Stuart J. Masson, Ana Asenjo-Garcia
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Quantum Hall phases emerging from atom–photon interactions
npj Quantum Information, 2021 We reveal the emergence of quantum Hall phases, topological edge states, spectral Landau levels, and Hofstadter butterfly spectra in the two-particle Hilbert space of an array of periodically spaced two-level atoms coupled to a waveguide (waveguide ...
Alexander V. Poshakinskiy +6 more
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Resolution of Gauge Ambiguities in Molecular Cavity Quantum Electrodynamics. [PDF]
Physical Review Letters, 2020 This work provides the fundamental theoretical framework for molecular cavity quantum electrodynamics by resolving the gauge ambiguities between the Coulomb gauge and the dipole gauge Hamiltonians under the electronic state truncation. We conjecture that
Michael A. D. Taylor +3 more
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The Relation between Classical and Quantum Electrodynamics
Theoria, 2011 Quantum electrodynamics presents intrinsic limitations in the description of physical processes that make it impossible to recover from it the type of description we have in classical electrodynamics.
Mario Bacelar Valente
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Seamless High-Q Microwave Cavities for Multimode Circuit Quantum Electrodynamics. [PDF]
Physical Review Letters, 2020 Multimode cavity quantum electrodynamics-where a two-level system interacts simultaneously with many cavity modes-provides a versatile framework for quantum information processing and quantum optics. Because of the combination of long coherence times and
S. Chakram +7 more
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Nonperturbative waveguide quantum electrodynamics
Physical Review Research, 2022 Understanding physical properties of quantum emitters strongly interacting with quantized electromagnetic modes is one of the primary goals in the emergent field of waveguide quantum electrodynamics (QED).
Yuto Ashida +3 more
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Visualizing the emission of a single photon with frequency and time resolved spectroscopy [PDF]
Quantum, 2021 At the dawn of Quantum Physics, Wigner and Weisskopf obtained a full analytical description (a $\textit{photon portrait}$) of the emission of a single photon by a two-level system, using the basis of frequency modes (Weisskopf and Wigner, "Zeitschrift ...
Aleksei Sharafiev +6 more
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