Results 31 to 40 of about 38,024 (227)

Resonant enhanced diffusion in time dependent flow

, 1998
Explicit examples of scalar enhanced diffusion due to resonances between different transport mechanisms are presented. Their signature is provided by the sharp and narrow peaks observed in the effective diffusivity coefficients and, in the absence of ...
A Crisanti, A Mazzino, A Vulpiani, Avellaneda M, Bensoussan A, Benzi R, Benzi R, Chernikov A A, Clever R M, Crisanti A, Fannjang A, Gollub J P, Gottlieb D, M Vergassola, Majda A, Marchuk G I, Mazzino A, McLaughlin D, Moffatt H K, P Castiglione, Pielke R, Sorbjan Z, Taylor G I, Taylor G I   +23 more
core   +2 more sources

Dark solitons in cigar-shaped Bose-Einstein condensates in double-well potentials [PDF]

, 2010
We study the statics and dynamics of dark solitons in a cigar-shaped Bose-Einstein condensate confined in a double-well potential. Using a mean-field model with a non-cubic nonlinearity, appropriate to describe the dimensionality crossover regime from ...
C. J. Pethick, D. J. Frantzeskakis, G. Theocharis, L. Pitaevskii, P. G. Kevrekidis, P. Schmelcher, R. S. MacKay, S. H. Strogatz, S. Middelkamp, V. E. Zakharov, V. E. Zakharov   +10 more
core   +3 more sources

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Stability analysis of inflation with an SU(2) gauge field

, 2013
We study anisotropic cosmologies of a scalar field interacting with an SU(2) gauge field via a gauge-kinetic coupling. We analyze Bianchi class A models, which include Bianchi type I, II, VI0, VII0, VIII and IX.
Maeda, Kei-ichi, Yamamoto, Kei
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Dynamics of a Dark Matter Field with a Quartic Self-Interaction Potential [PDF]

, 1999
It may prove useful in cosmology to understand the behavior of the energy distribution in a scalar field that interacts only with gravity and with itself by a pure quartic potential, because if such a field existed it would be gravitationally produced ...
A. A. Starobinsky, G. Felder, L. H. Ford, M. S. Turner, M. Yu. Khlopov, P. B. Greene, P. J. E. Peebles, P. J. E. Peebles, P. J. E. Peebles, S. Yu. Khlebnikov, W. Hu   +10 more
core   +2 more sources

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Parabolic equations with VMO coefficients in Morrey spaces

Electronic Journal of Differential Equations, 2001
Global regularity in Morrey spaces is derived for the regular oblique derivative for linear uniformly parabolic operators. The principal coefficients of the operator are supposed to be discontinuous, belonging to Sarason's class of functions with ...
Lubomira G. Softova
doaj  

Unsharp continuous measurement of a Bose-Einstein condensate: full quantum state estimation and the transition to classicality

, 2012
We study a Bose-Einstein condensate (BEC) in a double-well potential subject to an unsharp continuous measurement of the atom number in one of the two wells.
Buchleitner, Andreas, Hiller, Moritz, Konrad, Thomas, Petruccione, Francesco, Rehn, Magnus   +4 more
core   +2 more sources