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14 papers · 2 filters
The Resource Theory of Quantum States Out of Thermal Equilibrium
Fernando G. S. L. Brandão, Michał Horodecki, Jonathan Oppenheim +2
The ideas of thermodynamics have proved fruitful in the setting of quantum information theory, in particular the notion that when the allowed transformations of a system are restri…
Highly efficient broadband conversion of light polarization by composite retarders
S. S. Ivanov, A. A. Rangelov, N. V. Vitanov +2
Driving on an analogy with the technique of composite pulses in quantum physics, we propose highly efficient broadband polarization converters composed of sequences of ordinary ret…
Cold and trapped metastable noble gases
Wim Null Vassen, Claude Cohen-Tannoudji, Michèle Leduc +7
We review experimental and theoretical work on cold, trapped metastable noble gases. We em- phasize the aspects which distinguish work with these atoms from the large body of work…
Scalable Architecture for Quantum Information Processing with Atoms in Optical Micro-Structures
Malte Schlosser, Sascha Tichelmann, Jens Kruse +1
We review recent experimental progress towards quantum information processing and quantum simulation using neutral atoms in two-dimensional (2D) arrays of optical microtraps as 2D…
Filtering of matter wave vibrational states via spatial adiabatic passage
Yu. Loiko, V. Ahufinger, R. Corbalán +2
We discuss the filtering of the vibrational states of a cold atom in an optical trap, by chaining this trap with two empty ones and controlling adiabatically the tunneling. Matter…
PT symmetry and spontaneous symmetry breaking in a microwave billiard
S. Bittner, B. Dietz, U. Guenther +4
We demonstrate the presence of parity-time (PT) symmetry for the non-Hermitian two-state Hamiltonian of a dissipative microwave billiard in the vicinity of an exceptional point (EP…