Optical-lattice based Cs active clock with continual superradiant lasing signal

Abstract

We demonstrate state-of-the-art technique of an active clock to provide a continuous superradiant lasing signal using an ensemble of trapped Cs atoms in the optical lattice. A magic wavelength of the proposed |7S1/2; F = 4, MF = 0> - |6P3/2; F = 3, MF = 0> clock transition in Cs atom is identified at 1181 nm for constructing the optical lattice. Pertinent optical lines are also found for pumping and repumping atoms from their ground states. A fractional uncertainty about 10-15 level to the clock frequency has been predicted by carrying out rigorous calculations of several atomic properties. The bad-cavity operational mode of the active clock is anticipated to improve its short-term stability remarkably by suppressing intrinsic thermal fluctuations. Thus, a composite clock system with better in both short-term and long-term stabilities can be built by combining the above proposed active clock with another high-accuracy passive optical clock.

References in corpus (20)

• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
• A sub-40 mHz linewidth laser based on a silicon single-crystal optical cavity
• Single-Ion Atomic Clock with $3\times 10^{-18}$ Systematic Uncertainty
• 1.5 $\mu$m lasers with sub 10 mHz linewidth
• Prospects for a mHz-linewidth laser
• Colloquium: Physics of optical lattice clocks
• Squeezing Enhances Quantum Synchronization
• An ultrastable silicon cavity in a continuously operating closed-cycle cryostat at 4 K
• Frequency measurements of superradiance from the strontium clock transition
• Inner-shell clock transition in atomic thulium with small BBR shift
• Sympathetic ground state cooling and time-dilation shifts in an ${}^{27}{\text{Al}}^{+}$ optical clock
• Power stabilization of a diode laser with an acousto-optic modulator
• Pulse delay time statistics in a superradiant laser with calcium atoms
• Determination of the scalar and vector polarizabilities of the cesium $6s{}^2{S}_{1/2}\to 7s{}^2{S}_{1/2}$ transition and implications for atomic parity non-conservation
• Measurement of the radial matrix elements for the $6s^2{S}_{1/2}\to 7p^2{P}_J$ transitions in cesium
• Electric dipole matrix elements for the $6p{}^2{P}_J\to 7s{}^2{S}_{1/2}$ transition in atomic cesium
• Stability analysis for bad cavity lasers using inhomogeneously broadened spin-1/2 atoms as gain medium
• Comparing magic wavelengths for the $6s{}^2{S}_{1/2}-6p{}^2{P}_{1/2,3/2}$ transitions of Cs using circularly and linearly polarized light
• Magnetic sublevel independent magic wavelengths: Application in the Rb and Cs atoms
• Decomposed description of Ramsey spectra under atomic interactions

Cited by in corpus (5)

• Ultra precise determination of Cs($n{S}_{1/2}$) and Cs($n{D}_J$) quantum defects for sensing and computing: Evaluation of core contributions
• Fully Collective Superradiant Lasing with Vanishing Sensitivity to Cavity Length Vibrations
• Correlations and linewidth of the atomic beam continuous superradiant laser
• Precision measurement of Cs($n{F}_J$) quantum defects and calculations of scalar and tensor polarizabilities of the $n{S}_{1/2}$, $n{P}_J$ ,$n{D}_J$ , and $n{F}_J$ series
• Investigating the $4D_{3/2}|3,\pm 2⟩$--$4D_{5/2}|3,\pm 2⟩$ transition in Nb${}^{4+}$ for a THz atomic clock