Results 21 to 30 of about 66,449 (265)

Quantum state reconstruction on atom-chips

open access: yesNew Journal of Physics, 2015
We realize on an atom-chip, a practical, experimentally undemanding, tomographic reconstruction algorithm relying on the time–resolved measurements of the atomic population distribution among atomic internal states.
C Lovecchio   +7 more
doaj   +1 more source

1.4 Million Q-Factor 780 nm Wavelength Si3N4 Micro-rings for Chip-Scale Atomic Systems [PDF]

open access: yesConference on Lasers and Electro-Optics, 2020
A silicon nitride micro-ring resonator with loaded Q factor of 1.4 million at 780 nm wavelength on silicon substrates for chip-scale atomic systems targeting the 87Rb atomic transition at 780.24 nm.
Sinclair, Martin   +7 more
openaire   +2 more sources

Efficient on-chip source of microwave photon pairs in superconducting circuit QED [PDF]

open access: yes, 2006
We describe a scheme for the efficient generation of microwave photon pairs by parametric downconversion in a superconducting transmission line resonator coupled to a Cooper pair box serving as an artificial atom.
Marquardt, Florian
core   +1 more source

Microwave quantum optics with an artificial atom in one-dimensional open space

open access: yesNew Journal of Physics, 2013
We address recent advances in microwave quantum optics with artificial atoms in one-dimensional (1D) open space. This field relies on the fact that the coupling between a superconducting artificial atom and propagating microwave photons in a 1D open ...
Io-Chun Hoi   +6 more
doaj   +1 more source

Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime [PDF]

open access: yes, 2010
In cavity quantum electrodynamics (QED), light-matter interaction is probed at its most fundamental level, where individual atoms are coupled to single photons stored in three-dimensional cavities.
A Abdumalikov   +41 more
core   +3 more sources

Note: A silicon-on-insulator microelectromechanical systems probe scanner for on-chip atomic force microscopy

open access: yesReview of Scientific Instruments, 2015
A new microelectromechanical systems-based 2-degree-of-freedom (DoF) scanner with an integrated cantilever for on-chip atomic force microscopy (AFM) is presented. The silicon cantilever features a layer of piezoelectric material to facilitate its use for tapping mode AFM and enable simultaneous deflection sensing.
Fowler, Anthony G.   +2 more
openaire   +4 more sources

Coherent transport by adiabatic passage on atom chips [PDF]

open access: yes, 2013
Adiabatic techniques offer some of the most promising tools for achieving high-fidelity control of the center-of-mass degree of freedom of single atoms.
Busch, Thomas   +4 more
core   +2 more sources

Experimental proof of quantum Zeno-assisted noise sensing

open access: yesNew Journal of Physics, 2019
In the ideal quantum Zeno (QZ) effect, repeated quantum projective measurements can freeze the coherent dynamics of a quantum system. However, in the weak QZ regime, measurement back-actions can allow the sensing of semi-classical field fluctuations.
Hoang-Van Do   +8 more
doaj   +1 more source

Research on a chip scale atomic clock driven GNSS/SINS deeply coupled navigation system for augmented performance [PDF]

open access: yesIET Radar, Sonar & Navigation, 2019
Chip scale atomic clock (CSAC) is a recently developed low‐profile atomic frequency reference device. Researchers have demonstrated CSAC was able to improve the accuracy of Global navigation satellite system (GNSS) receiver positioning results. However, the work was conducted using scalar tracking loops (STL).
Changhui Jiang   +3 more
openaire   +2 more sources

Double light-cone dynamics establish thermal states in integrable 1D Bose gases

open access: yesNew Journal of Physics, 2018
We theoretically investigate the non-equilibrium dynamics in a quenched pair of one-dimensional Bose gases with density imbalance. We describe the system using its low-energy effective theory, the Luttinger liquid model.
T Langen   +3 more
doaj   +1 more source

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