Alkaline-earth atoms in optical tweezers
We demonstrate single-shot imaging and narrow-line cooling of individual alkaline-earth
atoms in optical tweezers; specifically, strontium trapped in 515.2-nm light. Our approach …
atoms in optical tweezers; specifically, strontium trapped in 515.2-nm light. Our approach …
Exploring dynamical phase transitions with cold atoms in an optical cavity
Interactions between atoms and light in optical cavities provide a means of investigating
collective (many-body) quantum physics in controlled environments. Such ensembles of …
collective (many-body) quantum physics in controlled environments. Such ensembles of …
The development of active optical clock
J Zhang, T Shi, J Miao, J Chen - AAPPS Bulletin, 2023 - Springer
The atomic clocks, whether operating at optical or microwave region, can be divided into two
categories according to their working mode, namely the passive clocks and active clocks …
categories according to their working mode, namely the passive clocks and active clocks …
2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
We demonstrate single-atom resolved imaging with a survival probability of 0.99932 (8) and
a fidelity of 0.99991 (1), enabling us to perform repeated high-fidelity imaging of single …
a fidelity of 0.99991 (1), enabling us to perform repeated high-fidelity imaging of single …
Laser-driven superradiant ensembles of two-level atoms near Dicke regime
We report the experimental observation of a superradiant emission emanating from an
elongated dense ensemble of laser cooled two-level atoms, with a radial extent smaller than …
elongated dense ensemble of laser cooled two-level atoms, with a radial extent smaller than …
Observing dynamical phases of BCS superconductors in a cavity QED simulator
Abstract In conventional Bardeen–Cooper–Schrieffer superconductors, electrons with
opposite momenta bind into Cooper pairs due to an attractive interaction mediated by …
opposite momenta bind into Cooper pairs due to an attractive interaction mediated by …
Emergent dark states from superradiant dynamics in multilevel atoms in a cavity
We investigate the collective decay dynamics of atoms with a generic multilevel structure
(angular momenta F↔ F′) coupled to two light modes of different polarization inside a …
(angular momenta F↔ F′) coupled to two light modes of different polarization inside a …
Subnatural Linewidth Superradiant Lasing with Cold Atoms
Superradiant lasers operate in the bad-cavity regime, where the phase coherence is stored
in the spin state of an atomic medium rather than in the intracavity electric field. Such lasers …
in the spin state of an atomic medium rather than in the intracavity electric field. Such lasers …
Cavity-QED measurements of the millihertz optical clock transition and determination of its natural linewidth
We demonstrate the direct quantum nondemolition detection of a millihertz linewidth optical
atomic transition. We observe the modification of the phase and amplitude of a probe field …
atomic transition. We observe the modification of the phase and amplitude of a probe field …
Lasing on a narrow transition in a cold thermal strontium ensemble
Highly stable laser sources based on narrow atomic transitions provide a promising platform
for direct generation of stable and accurate optical frequencies. Here we investigate a …
for direct generation of stable and accurate optical frequencies. Here we investigate a …