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Fast state and trap rotation of a particle in an anisotropic potential
(IOP Publishing, 2019-10-21)
We study the dynamics of a quantum or classical particle in a two-dimensional rotating anisotropic harmonic potential. By a sequence of symplectic transformations for constant rotation velocity we find uncoupled normal ...
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 ...
Vanishing efficiency of speeded-up quantum Otto engines
(IOP, 2019-08-28)
We assess the energy cost of shortcuts to adiabatic expansions or compressions of a harmonic oscillator, the power strokes of a quantum Otto engine. Difficulties to identify the cost stem from the interplay between different ...