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 …
Conditional dynamics in heterodyne detection of superradiant lasing with incoherently pumped atoms
In this Letter, we use quantum trajectory theory to simulate heterodyne detection of narrow
bandwidth superradiant lasing from an incoherently excited atomic ensemble. To this end …
bandwidth superradiant lasing from an incoherently excited atomic ensemble. To this end …