Results 61 to 70 of about 137,740 (294)

Rabi oscillations of a qubit coupled to a two-level system [PDF]

, 2005
The problem of Rabi oscillations in a qubit coupled to a fluctuator and in contact with a heath bath is considered. A scheme is developed for taking into account both phase and energy relaxation in a phenomenological way, while taking full account of the
B. L Altshuler, D. V Shantsev, Gantmakher V. F., J Bergli, Johnson P. R., Ku L.-C., Slichter C. P., Y. M Galperin   +7 more
core   +2 more sources

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

The Impulse-Refractive Mode in the Neural Network with Ring Synaptic Interaction

Моделирование и анализ информационных систем, 2017
In the paper, a mathematical model of a neural network with an even number of ring synaptic interaction elements is considered. The model is a system of scalar nonlinear differentialdifference equations, the right parts of which depend on large ...
Margarita M. Preobrazhenskaia
doaj   +1 more source

Diurnal oscillations of MRI metrics in the brains of male participants

Nature Communications, 2023
Regulation of biological processes according to a 24-hr rhythm is essential for the normal functioning of an organism. Temporal variation in brain MRI data has often been attributed to circadian or diurnal oscillations; however, it is not clear if such ...
Matthew Carlucci, Tristram Lett, Sofia Chavez, Alexandra Malinowski, Nancy J. Lobaugh, Art Petronis   +5 more
doaj   +1 more source

Impact of Device Topology on the Performance of High-Speed 1550 nm Wafer-Fused VCSELs

Photonics, 2023
A detailed experimental analysis of the impact of device topology on the performance of 1550 nm VCSELs with an active region based on thin InGaAs/InAlGaAs quantum wells and a composite InAlGaAs buried tunnel junction is presented.
Andrey Babichev, Sergey Blokhin, Andrey Gladyshev, Leonid Karachinsky, Innokenty Novikov, Alexey Blokhin, Mikhail Bobrov, Yakov Kovach, Alexander Kuzmenkov, Vladimir Nevedomsky, Nikolay Maleev, Evgenii Kolodeznyi, Kirill Voropaev, Alexey Vasilyev, Victor Ustinov, Anton Egorov, Saiyi Han, Si-Cong Tian, Dieter Bimberg   +18 more
doaj   +1 more source

Effect of phase relaxation on quantum superpositions in complex collisions

, 2005
We study the effect of phase relaxation on coherent superpositions of rotating clockwise and anticlockwise wave packets in the regime of strongly overlapping resonances of the intermediate complex. Such highly excited deformed complexes may be created in
A. H. Zewail, A. H. Zewail, A. Richter, B. Ghosh, E. Wigner, L. Benet, M. Bienert, S. Yu. Kun, U. Smilansky, W. Greiner, Wang Qi   +10 more
core   +1 more source

Decoherence window and electron-nuclear cross-relaxation in the molecular magnet V 15 [PDF]

, 2012
Rabi oscillations in the V_15 Single Molecule Magnet (SMM) embedded in the surfactant DODA have been studied at different microwave powers. An intense damping peak is observed when the Rabi frequency Omega_R falls in the vicinity of the Larmor frequency ...
A. Müller, B. Barbara, B. Tsukerblat, B. Z. Malkin, B. S. Tsukerblat, E. I. Baibekov, J. H. Shim, M. A. Nielsen, S. Bertaina, S. Gambarelli, T. Mitra   +10 more
core   +3 more sources

Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley   +1 more source

Intersubband magnetophonon resonances in quantum cascade structures

, 2001
We report on our magnetotransport measurements of GaAs/GaAlAs quantum cascade structures in a magnetic field of up to 62 T. We observe novel quantum oscillations in tunneling current that are periodic in reciprocal magnetic field.
Apalkov, V., Becker, C., Chakraborty, T., Drachenko, O., Leotin, J., Page, H., Sirtori, C., Smirnov, D.   +7 more
core   +2 more sources

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

Advanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun, Andrea Capa Salinas, Stephen D. Wilson, Haijing Zhang   +3 more
wiley   +1 more source