Results 271 to 280 of about 36,457 (313)

Exploring Time‐Domain Femtosecond Rotational Coherent Raman Scattering for Diagnostics

open access: yesJournal of Raman Spectroscopy, EarlyView.
The diagnostic potential of femtosecond (fs) rotational coherent Raman scattering (RCRS) in the time domain is initially investigated. Experiments in air and pure nitrogen are reported, revealing the temperature sensitivity in the recorded fs‐RCRS temporal scans.
Meena Raveesh   +9 more
wiley   +1 more source

Scalable Structure for Chiral Quantum Routing. [PDF]

open access: yesEntropy (Basel)
Ragazzi G   +4 more
europepmc   +1 more source

Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities. [PDF]

open access: yesAdv Sci (Weinh)
Oliwa P   +12 more
europepmc   +1 more source

Dynamics of decoherence in a noisy driven environment. [PDF]

open access: yesSci Rep
Jafari R, Asadian A, Abdi M, Akbari A.
europepmc   +1 more source

Diffusion in Hamiltonian systems

Chaos: An Interdisciplinary Journal of Nonlinear Science, 1998
The study is reported of a diffusion in a model of degenerate Hamiltonian systems. The Hamiltonian under consideration is the sum of a linear function of action variables and a periodic function of angle variables. Under certain choices of these functions the diffusion of action variables exists. In the case of two degrees of freedom during the process
N. G. Moshchevitin, V. V. Kozlov
openaire   +3 more sources

Transport in Hamiltonian Systems

Physica D: Nonlinear Phenomena, 1984
Abstract We develop a theory of transport in Hamiltonian systems in the context of iteration of area-preserving maps. Invariant closed curves present complete barriers to transport, but in regions without such curves there are still invariant Cantor sets named cantori, which appear to form partial barriers. The flux through the gaps of the cantori is
Robert S. MacKay   +2 more
openaire   +2 more sources

Hamiltonian Systems with Convex Hamiltonians

2004
A well-known theorem states that if a level surface of a Hamiltonian is convex, then it contains a periodic trajectory of the Hamiltonian system [142], [147]. In this chapter we prove a more general statement as an application of optimal control theory for linear systems.
Yuri L. Sachkov, Andrei A. Agrachev
openaire   +2 more sources

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