Results 81 to 90 of about 1,832,739 (368)

Targeting qubit states using open-loop control [PDF]

, 2003
We present an open-loop (bang-bang) scheme which drives an open two-level quantum system to any target state, while maintaining quantum coherence throughout the process.
C D Helon, Fortunato M, Gardiner C W, Goetsch P, Khaneja N, Khaneja N, Khaneja N, Khaneja N, Knill E, Lidar D A, Mancini S, Nielsen M A, Palma G M, Protopopescu V, R Perez, Scully M S, Tombesi P, Tombesi P, Tombesi P, Tombesi P, V Protopopescu, Viola L, Viola L, Viola L, Vitali D, Walls D F, Weiss U, Wiseman H M, Wiseman H M, Wiseman H M, Zanardi P   +30 more
core   +2 more sources

Moments of work in the two-point measurement protocol for a driven open quantum system [PDF]

, 2014
We study the distribution of work induced by the two-point measurement protocol for a driven open quantum system. We first derive a general form for the generating function of work for the total system, bearing in mind that the Hamiltonian does not ...
S. Suomela, P. Solinas, J. Pekola, J. Ankerhold, T. Ala‐Nissila, T. Ala‐Nissila   +5 more
semanticscholar   +1 more source

Multipartite quantum correlations in open quantum systems

New Journal of Physics, 2013
In this paper we present a measure of quantum correlation for a multipartite system, defined as the sum of the correlations for all possible partitions. Our measure can be defined for quantum discord (QD), geometric quantum discord (GQD), or even by the entanglement of formation (EOF).
Ma, Zhihao, Chen, Zhihua, Fanchini, Felipe Fernandes   +2 more
openaire   +4 more sources

Transitionless quantum driving in open quantum systems

New Journal of Physics, 2014
We extend the concept of superadiabatic dynamics, or transitionless quantum driving, to quantum open systems whose evolution is governed by a master equation in the Lindblad form.
G Vacanti, R Fazio, S Montangero, G M Palma, M Paternostro, V Vedral   +5 more
doaj   +1 more source

Simulation of open-quantum-system dynamics using the quantum Zeno effect

Physical Review Research, 2020
We suggest a quantum simulator that allows to study the role of memory effects in the dynamics of open quantum systems. A particular feature of our simulator is the ability to engineer both Markovian and non-Markovian dynamics by means of quantum ...
Sabrina Patsch, Sabrina Maniscalco, Christiane P. Koch   +2 more
doaj   +1 more source

Convolutionless Non-Markovian master equations and quantum trajectories: Brownian motion revisited

, 2003
Stochastic Schr{\"o}dinger equations for quantum trajectories offer an alternative and sometimes superior approach to the study of open quantum system dynamics.
A. Novikov, A. O. Caldeira, C. W. Gardiner, F. Schwabl, G. Lindblad, H. Carmichael, H. Carmichael, H.-P. Breuer, J. Cresser, L. Diósi, N. G. van Kampen, N. Gisin, N. Gisin, P. Ullersma, R. Feynman, S. Gnutzmann, S. Nakajima, Ting Yu, U. Weiss, V. Bargmann, Walter T. Strunz   +20 more
core   +1 more source

Dynamics of Open Quantum Systems - Markovian Semigroups and Beyond

Symmetry, 2022
The idea of an open quantum system was introduced in the 1950s as a response to the problems encountered in areas such as nuclear magnetic resonance and the decay of unstable atoms. Nowadays, dynamical models of open quantum systems have become essential
A. Czerwinski
semanticscholar   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Non-Markovianity in High-Dimensional Open Quantum Systems using Next-generation Multicore Optical Fibers [PDF]

Quantum
With the advent of quantum technology, the interest in communication tasks assisted by quantum systems has increased both in academia and industry. Nonetheless, the transmission of a quantum state in real-world scenarios is bounded by environmental noise,
Santiago Rojas-Rojas, Daniel Martínez, Kei Sawada, Luciano Pereira, Stephen P. Walborn, Esteban S. Gómez, Nadja K. Bernardes, Gustavo Lima   +7 more
doaj   +1 more source

Geometric quantum speed limits for Markovian dynamics in open quantum systems

New Journal of Physics, 2022
We study theoretically the geometric quantum speed limits (QSLs) of open quantum systems under Markovian dynamical evolution. Three types of QSL time bounds are introduced based on the geometric inequality associated with the dynamical evolution from an ...
K. Lan, Shijie Xie, Xiangji Cai
semanticscholar   +1 more source