Search
Now showing items 1-10 of 10
Shortcut-to-Adiabaticity-Like Techniques for Parameter Estimation in Quantum Metrology
(MDPI, 2020-11-03)
Quantum metrology makes use of quantum mechanics to improve precision measurements and measurement sensitivities. It is usually formulated for time-independent Hamiltonians, but time-dependent Hamiltonians may offer ...
Noise Sensitivities for an Atom Shuttled by a Moving Optical Lattice via Shortcuts to Adiabaticity
(MDPI, 2020-02-25)
We find the noise sensitivities (i.e., the quadratic terms of the energy with respect to the perturbation of the noise) of a particle shuttled by an optical lattice that moves according to a shortcut-to-adiabaticity transport ...
Interferometer for force measurement via a shortcut to adiabatic arm guiding
(American Physical Society, 2020-06-12)
We propose a compact atom interferometer to measure homogeneous constant forces guiding the arms via shortcuts to adiabatic paths. For a given sensitivity, which only depends on the space-time area of the guiding paths, ...
Fast quasiadiabatic dynamics
(2015-10-07)
We work out the theory and applications of a fast quasiadiabatic approach to speed up slow adiabatic manipulations of quantum systems by driving a control parameter as near to the adiabatic limit as possible over the entire ...
Fast driving between arbitrary states of a quantum particle by trap deformation
(2016-12-22)
By performing a slow adiabatic change between two traps of a quantum particle, it is possible to transform an eigenstate of the original trap into the corresponding eigenstate of the final trap. If no level crossings are ...
Fast atom transport and launching in a nonrigid trap
(Springer Nature, 2017-07-18)
We study the shuttling of an atom in a trap with controllable position and frequency. Using invariant-based inverse engineering, protocols in which the trap is simultaneously displaced and expanded are proposed to speed ...
Compact and high conversion efficiency mode-sorting asymmetric Y junction using shortcuts to adiabaticity
(Optica, 2014-04-08)
We propose a compact and high conversion efficiency asymmetric Y junction mode multiplexer/demultiplexer for applications in on-chip mode-division multiplexing. Traditionally, mode sorting is achieved by adiabatically ...
Interferometer with a driven trapped ion
(2018-10-18)
We propose an interferometric measurement of weak forces using a single ion subjected to designed time-dependent spin-dependent forces. Explicit expressions of the relation between the unknown force and the final populations ...
Shortcuts to adiabaticity: concepts, methods, and applications
(2019-10-24)
Shortcuts to adiabaticity (STA) are fast routes to the final results of slow, adiabatic changes of the controlling parameters of a system. The shortcuts are designed by a set of analytical and numerical methods suitable ...
Shortcuts to adiabaticity in optical waveguides using fast quasiadiabatic dynamics
(Optica Publishing Group, 2017-01-03)
We propose a fast quasiadiabatic approach to the design of optical waveguide devices. This approach distributes the system adiabaticity homogeneously over the device length, thus providing a shortcut to adiabaticity at a ...