Related papers: Optically accessible high-finesse millimeter-wave resonator for cavity quantum electrodynamics with atom arrays

Optically accessible high-finesse millimeter-wave resonator for cavity quantum electrodynamics with atom arrays

URL: http://arxiv.org/abs/2506.05804v1
Date: Fri, 06 Jun 2025 07:03:58 GMT
Title: Optically accessible high-finesse millimeter-wave resonator for cavity quantum electrodynamics with atom arrays
Authors: Tony Zhang, Michelle Wu, Sam R. Cohen, Lin Xin, Debadri Das, Kevin K. S. Multani, Nolan Peard, Anne-Marie Valente-Feliciano, Paul B. Welander, Amir H. Safavi-Naeini, Emilio A. Nanni, Monika Schleier-Smith,
Abstract summary: We present a millimeter-wave Fabry-P'erot cavity with finesse $5.8(1) times 107$ at a temperature of 1 K.<n>Conflicting goals of strong atom-photon coupling and optical access motivate a near-confocal geometry.
Score: 1.296426902696644
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Cavity quantum electrodynamics (QED) is a powerful tool in quantum science, enabling preparation of non-classical states of light and scalable entanglement of many atoms coupled to a single field mode. While the most coherent atom-photon interactions have been achieved using superconducting millimeter-wave cavities coupled to Rydberg atoms, these platforms so far lack the optical access required for trapping and addressing individual atomic qubits. We present a millimeter-wave Fabry-P\'erot cavity with finesse $5.8(1) \times 10^7$ at a temperature of 1 K providing generous transverse optical access (numerical aperture 0.56). Conflicting goals of strong atom-photon coupling and optical access motivate a near-confocal geometry. Close to confocality, however, post-paraxial corrections to the cavity spectrum introduce unexpected degeneracies between transverse modes, leading to excess cavity loss. Modeling these corrections allows for tuning the cavity geometry to evade this loss, producing a high finesse that will enable cavity QED experiments with trapped atoms deep in the strong coupling regime.

Related papers

Cavity QED with molecular defects coupled to to a photonic crystal cavity [0.0]
We implement permanent spectral tuning to bring lifetime-limited emitters into collective resonance within an integrated photonic cavity.<n>This addresses a fundamental challenge in solid-state cavity QED: combining multiple coherent quantum emitters with scalable nanophotonics.
arXiv Detail & Related papers (2025-06-02T17:37:02Z)
Hybrid and scalable photonic circuit cavity quantum electrodynamics [16.881676658514966]
We propose and demonstrate a hybrid solid-state cQED platform integrated on a chip.<n>Our device integrates semiconducting quantum dots (QDs) with a thin-film lithium niobate microring resonator.<n>We realize a spectrally tunable hybrid photonic circuit cQED device, sustaining near-constant Purcell factors of 1.89 over a 0.30 nm spectral range.
arXiv Detail & Related papers (2025-04-07T01:45:28Z)
Cavity QED in a High NA Resonator [5.785011027356357]
A new numerical-aperture, lens-based resonator pushes the single-atom-single-photon absorption probability per round trip close to its fundamental limit. This resonator provides strong light-matter coupling in a cavity where the light circulates only 10 times.
arXiv Detail & Related papers (2024-07-05T18:00:24Z)
Site-Controlled Purcell-Induced Bright Single Photon Emitters in Hexagonal Boron Nitride [62.170141783047974]
Single photon emitters hosted in hexagonal boron nitride (hBN) are essential building blocks for quantum photonic technologies that operate at room temperature. We experimentally demonstrate large-area arrays of plasmonic nanoresonators for Purcell-induced site-controlled SPEs. Our results offer arrays of bright, heterogeneously integrated quantum light sources, paving the way for robust and scalable quantum information systems.
arXiv Detail & Related papers (2024-05-03T23:02:30Z)
Enhanced Spectral Density of a Single Germanium Vacancy Center in a Nanodiamond by Cavity-Integration [35.759786254573896]
Color centers in diamond, among them the negatively-charged germanium vacancy (GeV$-$), are promising candidates for many applications of quantum optics. We demonstrate the transfer of a nanodiamond containing a single ingrown GeV- center with excellent optical properties to an open Fabry-P'erot microcavity.
arXiv Detail & Related papers (2023-07-03T10:33:06Z)
Cloaking a qubit in a cavity [36.136619420474766]
Cavity quantum electrodynamics (QED) uses a cavity to engineer the mode structure of the vacuum electromagnetic field. Controllably decoupling a qubit from the cavity's photon population, effectively cloaking the qubit from the cavity. Experiment demonstrates how qubit cloaking can be exploited to cancel ac-Stark shift and measurement-induced dephasing.
arXiv Detail & Related papers (2022-11-10T18:45:03Z)
State-Insensitive Trapping of Alkaline-Earth Atoms in a Nanofiber-Based Optical Dipole Trap [0.0]
We demonstrate a state-insensitive optical dipole trap for strontium-88, an alkaline-earth atom, using the evanescent fields of a nanotapered optical fiber. This work also lays the foundation for developing versatile and robust matter-wave atomtronic circuits over nanophotonic waveguides.
arXiv Detail & Related papers (2022-11-08T04:54:50Z)
Quantum-limited millimeter wave to optical transduction [50.663540427505616]
Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
arXiv Detail & Related papers (2022-07-20T18:04:26Z)
Large Single-Phonon Optomechanical Coupling between Quantum Dots and Tightly Confined Surface Acoustic Waves in the Quantum Regime [1.7039969990048311]
Small acoustic cavities with large zero-point motion are required for high efficiencies. We experimentally establish the feasibility of this platform through electro- and opto-mechanical characterization. We show conversion between microwave phonons and optical photons with sub-natural linewidths.
arXiv Detail & Related papers (2022-05-03T02:53:01Z)
Review on coherent quantum emitters in hexagonal boron nitride [91.3755431537592]
I discuss the state-of-the-art of defect centers in hexagonal boron nitride with a focus on optically coherent defect centers. The spectral transition linewidth remains unusually narrow even at room temperature. The field is put into a broad perspective with impact on quantum technology such as quantum optics, quantum photonics as well as spin optomechanics.
arXiv Detail & Related papers (2022-01-31T12:49:43Z)
Hybrid quantum photonics based on artificial atoms placed inside one hole of a photonic crystal cavity [47.187609203210705]
Hybrid quantum photonics with SiV$-$-containing nanodiamonds inside one hole of a one-dimensional, free-standing, Si$_3$N$_4$-based photonic crystal cavity is presented. The resulting photon flux is increased by more than a factor of 14 as compared to free-space. Results mark an important step to realize quantum network nodes based on hybrid quantum photonics with SiV$-$- center in nanodiamonds.
arXiv Detail & Related papers (2020-12-21T17:22:25Z)
Tunable quantum photonics platform based on fiber-cavity enhanced single photon emission from two-dimensional hBN [52.915502553459724]
In this work we present a hybrid system consisting of defect centers in few-layer hBN grown by chemical vapor deposition and a fiber-based Fabry-Perot cavity. We achieve very large cavity-assisted signal enhancement up to 50-fold and equally strong linewidth narrowing owing to cavity funneling. Our work marks an important milestone for the deployment of 2D materials coupled to fiber-based cavities in practical quantum technologies.
arXiv Detail & Related papers (2020-06-23T14:20:46Z)
Quantum interface between light and a one-dimensional atomic system [58.720142291102135]
We investigate optimal conditions for the quantum interface between a signal photon pulse and one-dimensional chain consisting of a varied number of atoms. The efficiency of interaction is mainly limited by achieved overlap and coupling of the waveguide evanescent field with the trapped atoms.
arXiv Detail & Related papers (2020-04-11T11:43:54Z)

This list is automatically generated from the titles and abstracts of the papers in this site.