aqora

Quantum Matter built from Atoms and Photons in Nanoscopic Dielectric Lattices

Harry J. Kimble

New paradigms for optical physics emerge from the integration of ultra-cold atoms with photonic crystal waveguides. I will review progress and prospects in this emerging field at the interfaces of nano-photonics, atomic physics, and quantum optics.

Conference on Lasers and Electro-OpticsJan 1, 20160 citations

Observation and control of Ultra-cold atomic De Broglie wave dynamics in an Optical lattice

幹男上妻, Mikio Kozuma

Jan 1, 19970 citations

Observation and control of ultra-cold atomic De Broglie wave dynamics in an optical lattice(光格子中における極低温原子ドブロイ波のダイナミクスの観察と制御に関する研究)

幹男上妻

Jan 1, 19970 citations

Quantum electrodynamics in optical microcavities and waveguides: Basics and applications to quantum photonics

Julien Claudon, Jean‐Michel Gérard

Elsevier eBooksJan 1, 20241 citation

Light-Matter Interaction at the Transition between Cavity and Waveguide QED

Daniel Lechner, Riccardo Pennetta, Martin Blaha +3 more

Experiments based on cavity quantum electrodynamics (QED) are widely used to study the interaction of a light field with a discrete frequency spectrum and emitters. More recently, the field of waveguide QED has attracted interest due to the strong interaction between propagating photons and emitters that can be obtained in nanophotonic waveguides, where a continuum of frequency modes is allowed. Both cavity and waveguide QED share the common goal of harnessing and deepening the understanding of light-matter coupling. However, they often rely on very different experimental setups and theoretical descriptions. Here, we experimentally investigate the transition from cavity to waveguide QED with an ensemble of cold atoms that is coupled to a fiber-ring resonator, which contains a nanofiber section. By varying the length of the resonator from a few meters to several tens of meters, we tailor the spectral density of modes of the resonator while remaining in the strong coupling regime. When increasing the resonator length, we observe a continuous transition from the paradigmatic Rabi oscillations of cavity QED to non-Markovian dynamics reminiscent of waveguide QED.Experiments based on cavity quantum electrodynamics (QED) are widely used to study the interaction of a light field with a discrete frequency spectrum and emitters. More recently, the field of waveguide QED has attracted interest due to the strong interaction between propagating photons and emitters that can be obtained in nanophotonic waveguides, where a continuum of frequency modes is allowed. Both cavity and waveguide QED share the common goal of harnessing and deepening the understanding of light-matter coupling. However, they often rely on very different experimental setups and theoretical descriptions. Here, we experimentally investigate the transition from cavity to waveguide QED with an ensemble of cold atoms that is coupled to a fiber-ring resonator, which contains a nanofiber section. By varying the length of the resonator from a few meters to several tens of meters, we tailor the spectral density of modes of the resonator while remaining in the strong coupling regime. When increasing the resonator length, we observe a continuous transition from the paradigmatic Rabi oscillations of cavity QED to non-Markovian dynamics reminiscent of waveguide QED.

arXiv:2302.07161Physical Review LettersSep 8, 202326 citations

Fermionic matter-wave quantum optics with cold-atom impurity models

Bennet Windt, Miguel Bello, Eugene Demler +1 more

Motivated by recent cold-atom realisations of matter-wave waveguide QED, we study simple fermionic impurity models and discuss fermionic analogues of several paradigmatic phenomena in quantum optics, including formation of non-trivial bound states, (matter-wave) emission dynamics, and collective dissipation. For a single impurity, we highlight interesting ground-state features, focusing in particular on real-space signatures of an emergent length scale associated with an impurity screening cloud. We also present novel non-Markovian many-body effects in the quench dynamics of single- and multiple-impurity systems, including fractional decay around the Fermi level and multi-excitation population trapping due to bound states in the continuum.Motivated by recent cold-atom realisations of matter-wave waveguide QED, we study simple fermionic impurity models and discuss fermionic analogues of several paradigmatic phenomena in quantum optics, including formation of non-trivial bound states, (matter-wave) emission dynamics, and collective dissipation. For a single impurity, we highlight interesting ground-state features, focusing in particular on real-space signatures of an emergent length scale associated with an impurity screening cloud. We also present novel non-Markovian many-body effects in the quench dynamics of single- and multiple-impurity systems, including fractional decay around the Fermi level and multi-excitation population trapping due to bound states in the continuum.

arXiv:2305.11610May 19, 20230 citations

Waveguide-QED with Atomic Matter Waves

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Waveguide-QED with Atomic Matter Waves

Abstract

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