Coherent control of a classical nanomechanical two-level system
نویسندگان
چکیده
منابع مشابه
Coherent control of a nanomechanical two-level system
The Bloch sphere is a generic picture describing a coupled two-level system and the coherent dynamics of its superposition states under control of electromagnetic fields 1. It is commonly employed to visualise a broad variety of phenomena ranging from spin ensembles 2 and atoms 3 to quantum dots 4 and superconducting circuits 5. The underlying Bloch equations 6 describe the state evolution of t...
متن کاملCoherent Control of Quantum Entropy via Quantum Interference in a Four-Level Atomic System
The time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. Quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy. It is found that the degree of entanglement can be increased by the quantum interference induced by spontaneous emission. The phase dependence of the atom-field entanglement is...
متن کاملClassical Stückelberg interferometry of a nanomechanical two-mode system
Maximilian J. Seitner,1,2,* Hugo Ribeiro,3 Johannes Kölbl,1 Thomas Faust,2 Jörg P. Kotthaus,2 and Eva M. Weig1,2 1Departement of Physics, University of Konstanz, 78457 Konstanz, Germany 2Center for NanoScience (CeNS) and Fakultät für Physik, Ludwig-Maximilians-Universität, Geschwister-Scholl-Platz 1, München 80539, Germany 3Department of Physics, McGill University, Montreal, Quebec, Canada H3A ...
متن کاملCoherent transients mimicked by two-photon coherent control of a three-level system
We show theoretically and experimentally that two-photon coherent control in a V -shape three-level system projects a one-photon coherent transient in a simple two-level system. The secondand third-order spectral phase terms of a shaped laser pulse play the roles of time and quadratic spectral phase, respectively, in conventional coherent transients. In a three-pulse coherent control experiment...
متن کاملcoherent control of quantum entropy via quantum interference in a four-level atomic system
the time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy. it is found that the degree of entanglement can be increased by the quantum interference induced by spontaneous emission. the phase dependence of the atom-field entanglement is...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Physics
سال: 2013
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys2666