Suppressing deleterious effects of spontaneous emission in creating bound states in cold atom continuum
@article{Naskar2019SuppressingDE, title={Suppressing deleterious effects of spontaneous emission in creating bound states in cold atom continuum}, author={Somnath Naskar and Dibyendu Sardar and Bimalendu Deb and G. S. Agarwal}, journal={Journal of Physics B: Atomic, Molecular and Optical Physics}, year={2019} }
In a previous paper [B. Deb and G. S. Agarwal, Phys. Rev. A 90, 063417 (2014)], it was theoretically shown that, magneto-optical manipulation of low energy scattering resonances and atom-molecule transitions could lead to the formation of a bound state in continuum (BIC), provided there is no spontaneous emission. We find that even an exceedingly small spontaneous decay from exited molecular states can spoil the BIC. In this paper, we show how to circumvent the detrimental effect of spontaneous…
One Citation
A Simplified Laser System for Atom Interferometry Based on a Free-Space EOM
- PhysicsPhotonics
- 2022
In this paper, a compact laser system for 87Rb atom interferometry based on only one free-space electro-optic modulator (EOM) was realized, where repumping and Raman beams were generated with a…
References
SHOWING 1-10 OF 90 REFERENCES
Creation and manipulation of bound states in the continuum with lasers: Applications to cold atoms and molecules
- Physics
- 2014
We show theoretically that it is possible to create and manipulate a pair of bound states in continuum in ultracold atoms by two lasers in the presence of a magnetically tunable Feshbach resonance.…
Observation of trapped light within the radiation continuum
- PhysicsNature
- 2013
It is predicted and shown experimentally that light can be perfectly confined in a patterned dielectric slab, even though outgoing waves are allowed in the surrounding medium.
Lasing action from photonic bound states in continuum
- PhysicsNature
- 2017
Results show that the lasing wavelength of the fabricated BIC cavities, each made of an array of cylindrical nanoresonators suspended in air, scales with the radii of the nanoreonators according to the theoretical prediction for the BIC mode, and lasing action from the designed BIC cavity persists even after scaling down the array to as few as 8-by-8 nanoreisonators.
Optical Feshbach resonances through a molecular dark state: Efficient manipulation ofp-wave resonances in fermionicYb171atoms
- Physics
- 2014
In a recent experiment by Yamazaki {\it et al.} [Phys.Rev. A {\bf 87} 010704 (R) (2013) ], $p$-wave optical Feshbach resonance in fermionic $^{171}$Yb atoms using purely long-range molecular excited…
Control of resonant interaction between electronic ground and excited states.
- PhysicsPhysical review letters
- 2013
Analysis of the on-site interaction of doubly occupied sites of an atomic Mott-insulator state in a three-dimensional optical lattice as a collisional frequency shift in a high-resolution laser spectroscopy reveals a wide variation of the interaction around a magnetic field.
Observation of an electronic bound state above a potential well
- PhysicsNature
- 1992
SHORTLY after the birth of quantum mechanics, von Neumann and Wigner made the remarkable proposal1 that certain spatially oscillating attractive potentials could support bound states at energies…
Long-lived quasistationary coherences in a V-type system driven by incoherent light.
- PhysicsPhysical review letters
- 2014
It is found that in the opposite limit of small level spacing Δ/γ≪1, appropriate for large molecules, the coherences can survive for an extremely long time τ=(2/γ)(Δ/γ)^{-2} before eventually decaying to zero, and coherences at short times can be substantial.
Long-lived quantum coherences in a
V
-type system strongly driven by a thermal environment
- PhysicsPhysical Review A
- 2018
We explore the coherent dynamics of a three-level V-system interacting with a thermal bath in the regime where thermal excitation occurs much faster than spontaneous decay. We present analytic…
Two-dimensional Fano lineshapes: Excited-state absorption contributions.
- PhysicsThe Journal of chemical physics
- 2018
It is found that the characteristic asymmetry of one-dimensional spectroscopies is recovered from the many-body contributions and that the higher lying excited manifolds have distorted lineshapes that are not anticipated from discrete-level Hamiltonians.
Stability of dressed states against radiative decay in strongly coupled bound-continuum transitions.
- PhysicsPhysical review. A, General physics
- 1987
It is shown that population can be trapped within the model atom even when radiative decay is included provided the two Fano q values which characterize the discrete-state-continuum interactions are equal, and the two-photon resonance condition is satisfied.