Loaded microwave cavity for compact vapor-cell clocks
- URL: http://arxiv.org/abs/2005.10159v1
- Date: Wed, 20 May 2020 16:06:57 GMT
- Title: Loaded microwave cavity for compact vapor-cell clocks
- Authors: Michele Gozzelino, Salvatore Micalizio, Claudio E. Calosso, Aldo
Godone, Haixiao Lin and Filippo Levi
- Abstract summary: Vapor-cell devices based on microwave interrogation provide a stable frequency reference with a compact and robust setup.
We present a compact cavity-cell assembly based on a cylindrical resonator.
The proposed design aims at strongly reducing the core of the atomic clock, maintaining at the same time high-performing short-term stability.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Vapor-cell devices based on microwave interrogation provide a stable
frequency reference with a compact and robust setup. Further miniaturization
must focus on optimizing the physics package, containing the microwave cavity
and atomic reservoir. In this paper we present a compact cavity-cell assembly
based on a dielectric-loaded cylindrical resonator. The structure accommodates
a clock cell with $0.9 \, \mathrm{cm^3}$ inner volume and has an outer volume
of only $35 \, \mathrm{cm^3}$. The proposed design aims at strongly reducing
the core of the atomic clock, maintaining at the same time high-performing
short-term stability ($\sigma_y(\tau) \leq 5\times 10^{-13} \,\tau^{-1/2}$
standard Allan deviation). The proposed structure is characterized in terms of
magnetic field uniformity and atom-field coupling with the aid of
finite-elements calculations. The thermal sensitivity is also analyzed and
experimentally characterized. We present preliminary spectroscopy results by
integrating the compact cavity within a rubidium clock setup based on the
pulsed optically pumping technique. The obtained clock signals are compatible
with the targeted performances. The loaded-cavity approach is thus a viable
design option for miniaturized microwave clocks.
Related papers
- Broad Instantaneous Bandwidth Microwave Spectrum Analyzer with a Microfabricated Atomic Vapor Cell [0.0]
microwave spectrum analysis with hot $87mathrmRb$ atoms in a microfabricated vapor cell.
Sensor is a MEMS atomic vapor cell filled with isotopically pure $87mathrmRb$ and $mathrmN$ buffer gas.
arXiv Detail & Related papers (2024-03-22T12:10:23Z) - An ion trap design for a space-deployable strontium-ion optical clock [0.0]
Optical atomic clocks demonstrate a better stability and lower systematic uncertainty than the highest performance microwave atomic clocks.
The best performing optical clocks have a large footprint in a laboratory environment and require specialist skills to maintain continuous operation.
We discuss the design of a physics package for a compact laser-cooled 88Sr+ optical clock that would be suitable for space deployment.
arXiv Detail & Related papers (2024-01-23T12:13:44Z) - Matter-wave collimation to picokelvin energies with scattering length and potential shape control [32.94471451530934]
We investigate the impact of atomic interactions on collimation by applying a lensing protocol to a $39$K Bose-Einstein condensate.
Our results pave the way to realize ensembles with more than $1times105$ atoms and 3D energies in the two-digit pK range.
arXiv Detail & Related papers (2023-10-06T17:20:27Z) - Finite Pulse-Time Effects in Long-Baseline Quantum Clock Interferometry [45.73541813564926]
We study the interplay of the quantum center-of-mass $-$ that can become delocalized $-$ together with the internal clock transitions.
We show at the example of a Gaussian laser beam that the proposed quantum-clock interferometers are stable against perturbations from varying optical fields.
arXiv Detail & Related papers (2023-09-25T18:00:03Z) - Entanglement and correlations in fast collective neutrino flavor
oscillations [68.8204255655161]
Collective neutrino oscillations play a crucial role in transporting lepton flavor in astrophysical settings.
We study the full out-of-equilibrium flavor dynamics in simple multi-angle geometries displaying fast oscillations.
We present evidence that these fast collective modes are generated by the same dynamical phase transition.
arXiv Detail & Related papers (2022-03-05T17:00:06Z) - Rapid generation of all-optical $^{39}$K Bose-Einstein condensates using
a low-field Feshbach resonance [58.720142291102135]
We investigate the production of all-optical $39$K Bose-Einstein condensates with different scattering lengths using a Feshbach resonance near $33$ G.
We are able to produce fully condensed ensembles with $5.8times104$ atoms within $850$ ms evaporation time at a scattering length of $232.
Based on our findings we describe routes towards high-flux sources of ultra-cold potassium for inertial sensing.
arXiv Detail & Related papers (2022-01-12T16:39:32Z) - A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity.
We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities.
We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
arXiv Detail & Related papers (2021-06-21T17:34:02Z) - Open-cavity in closed-cycle cryostat as a quantum optics platform [47.50219326456544]
We present a fiber-based open Fabry-P'erot cavity in a closed-cycle cryostat exhibiting ultra-high mechanical stability.
This set of results manifests open-cavity in a closed-cycle cryostat as a versatile and powerful platform for low-temperature cavity QED experiments.
arXiv Detail & Related papers (2021-03-09T18:41:48Z) - A Polariton-Stabilized Spin Clock [0.0]
Atom-like quantum systems in solids have been proposed as a compact alternative for atomic clocks.
We propose a solid-state spin clock' that hybridizes a microwave resonator with a magnetic-field-insensitive spin transition.
This stability would represent a significant improvement over the state-of-the-art in miniaturized atomic vapor clocks.
arXiv Detail & Related papers (2020-09-05T01:08:13Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.