Long lifetime of single atom in optical tweezer with laser cooling

2010 ◽  
Author(s):  
Junmin Wang ◽  
Jun He ◽  
Baodong Yang ◽  
Tiancai Zhang ◽  
Kunchi Peng
Keyword(s):  
Laser Cooling ◽  
Optical Tweezer ◽  
Single Atom ◽  
Long Lifetime

scholarly journals Energy distribution and cooling of a single atom in an optical tweezer

2008 ◽  
Vol 78 (3) ◽  
Author(s):  
C. Tuchendler ◽  
A. M. Lance ◽  
A. Browaeys ◽  
Y. R. P. Sortais ◽  
P. Grangier
Keyword(s):  
Energy Distribution ◽  
Optical Tweezer ◽  
Single Atom

Extending a release-and-recapture scheme to single atom optical tweezer for effective temperature evaluation

2011 ◽  
Vol 20 (7) ◽  
pp. 073701 ◽  
Author(s):  
Jun He ◽  
Bao-Dong Yang ◽  
Tian-Cai Zhang ◽  
Jun-Min Wang
Keyword(s):  
Effective Temperature ◽  
Optical Tweezer ◽  
Single Atom

scholarly journals Coherence and Raman Sideband Cooling of a Single Atom in an Optical Tweezer

2013 ◽  
Vol 110 (13) ◽  
Author(s):  
J. D. Thompson ◽  
T. G. Tiecke ◽  
A. S. Zibrov ◽  
V. Vuletić ◽  
M. D. Lukin
Keyword(s):  
Optical Tweezer ◽  
Single Atom ◽  
Sideband Cooling

scholarly journals Direct laser cooling of a symmetric top molecule

Science ◽  
2020 ◽  
Vol 369 (6509) ◽  
pp. 1366-1369 ◽  
Author(s):  
Debayan Mitra ◽  
Nathaniel B. Vilas ◽  
Christian Hallas ◽  
Loïc Anderegg ◽  
Benjamin L. Augenbraun ◽  
...  
Keyword(s):  
Small Molecules ◽  
Laser Cooling ◽  
Particle Physics ◽  
Complex Structure ◽  
Optical Tweezer ◽  
Polyatomic Molecules ◽  
Chiral Molecules ◽  
Direct Laser ◽  
Spin Isomers ◽  
Quantum Science

Ultracold polyatomic molecules have potentially wide-ranging applications in quantum simulation and computation, particle physics, and quantum chemistry. For atoms and small molecules, direct laser cooling has proven to be a powerful tool for quantum science in the ultracold regime. However, the feasibility of laser-cooling larger, nonlinear polyatomic molecules has remained unknown because of their complex structure. We laser-cooled the symmetric top molecule calcium monomethoxide (CaOCH3), reducing the temperature of ~104 molecules from 22 ± 1 millikelvin to 1.8 ± 0.7 millikelvin in one dimension and state-selectively cooling two nuclear spin isomers. These results demonstrate that the use of proper ro-vibronic transitions enables laser cooling of nonlinear molecules, thereby opening a path to efficient cooling of chiral molecules and, eventually, optical tweezer arrays of complex polyatomic species.

scholarly journals From Single Atoms to Engineered “Super-Atoms”: Interfacing Photons and Atoms in Free Space

2014 ◽  
Vol 2014 ◽  
pp. 1-28 ◽  
Author(s):  
Yevhen Miroshnychenko
Keyword(s):  
Laser Cooling ◽  
Quantum Communication ◽  
Single Photon ◽  
Experimental Methods ◽  
Quantum Systems ◽  
Single Atom ◽  
Laser Cooling And Trapping ◽  
Single Atoms ◽  
Quantum Properties ◽  
Collective Levels

During the last decades the development of laser cooling and trapping has revolutionized the field of quantum optics. Now we master techniques to control the quantum properties of atoms and light, even at a single atom and single photon level. Understanding and controlling interactions of atoms and light both on the microscopic single particle and on the macroscopic collective levels, are two of the very active directions of the current research in this field. The goal is to engineer quantum systems with tailored properties designed for specific applications. One of the ambitious applications on this way is interfacing quantum information for quantum communication and quantum computing. We summarize here theoretical ideas and experimental methods for interfacing atom-based quantum memories with single flying photons.

scholarly journals Fiber-pigtailed optical tweezer for single-atom trapping and single-photon generation

2013 ◽  
Vol 103 (11) ◽  
pp. 114103 ◽  
Author(s):  
S. Garcia ◽  
D. Maxein ◽  
L. Hohmann ◽  
J. Reichel ◽  
R. Long
Keyword(s):  
Single Photon ◽  
Optical Tweezer ◽  
Single Atom ◽  
Atom Trapping ◽  
Photon Generation

scholarly journals Thermalization of a Trapped Single Atom with an Atomic Thermal Bath

2021 ◽  
Vol 11 (5) ◽  
pp. 2258
Author(s):  
Rahul Sawant ◽  
Anna Maffei ◽  
Giovanni Barontini
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Thermal Equilibrium ◽  
Ultracold Atoms ◽  
Optical Tweezer ◽  
Single Atom ◽  
Thermal Bath ◽  
Vibrational States

We studied a single atom trapped in an optical tweezer interacting with a thermal bath of ultracold atoms of a different species. Because of the collisions between the trapped atom and the bath atoms, the trapped atom undergoes changes in its vibrational states occupation to reach thermal equilibrium with the bath. By using Monte Carlo simulations, we characterized the single atom’s thermalization process, and we studied how this can be used for cooling. Our simulations demonstrate that, within known experimental limitations, it is feasible to cool a trapped single atom with a thermal bath.

Efficient extension of the trapping lifetime of single atoms in an optical tweezer by laser cooling

2011 ◽  
Vol 84 (2) ◽  
pp. 025302 ◽  
Author(s):  
Jun He ◽  
Baodong Yang ◽  
Tiancai Zhang ◽  
Junmin Wang
Keyword(s):  
Laser Cooling ◽  
Optical Tweezer ◽  
Single Atoms

Single Atom Image Contrast in Fixed Beam Dark Field Electron Microscopy

1974 ◽  
Vol 32 ◽  
pp. 366-367
Author(s):  
Wah Chi
Keyword(s):  
Scattering Amplitude ◽  
Present Report ◽  
Dark Field ◽  
Image Contrast ◽  
Single Atom ◽  
Optical Theorem ◽  
Hartree Fock ◽  
Heavy Atoms ◽  
Beam Stop ◽  
Fixed Beam

Resolution and contrast are the important factors to determine the feasibility of imaging single heavy atoms on a thin substrate in an electron microscope. The present report compares the atom image characteristics in different modes of fixed beam dark field microscopy including the ideal beam stop (IBS), a wire beam stop (WBS), tilted illumination (Tl) and a displaced aperture (DA). Image contrast between one Hg and a column of linearly aligned carbon atoms (representing the substrate), are also discussed. The assumptions in the present calculations are perfectly coherent illumination, atom object is represented by spherically symmetric potential derived from Relativistic Hartree Fock Slater wave functions, phase grating approximation is used to evaluate the complex scattering amplitude, inelastic scattering is ignored, phase distortion is solely due to defocus and spherical abberation, and total elastic scattering cross section is evaluated by the Optical Theorem. The atom image intensities are presented in a Z-modulation display, and the details of calculation are described elsewhere.

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