Results 51 to 60 of about 5,079,022 (381)

CRITICAL EXPONENTS OF ERBIUM

open access: yesLe Journal de Physique Colloques, 1988
The exponent β that describes the sinusoidally modulate d ↔ paramagnetic phase transition crosses over from a value of 0.39 near TN to a mean field value away from TN. Electrical resistivity measurements near TN are given for the c axis and the critical behaviour is discussed.
G.H.F. Brits   +2 more
openaire   +3 more sources

Target Localization with Unknown Transmit Power and Path-Loss Exponent Using a Kalman Filter in WSNs

open access: yesSensors, 2020
We present a novel hybrid localization algorithm for wireless sensor networks in the absence of knowledge regarding the transmit power and path-loss exponent.
SeYoung Kang, TaeHyun Kim, WonZoo Chung
doaj   +1 more source

Critical Tsallis exponent in heavy ion reaction [PDF]

open access: yes, 2001
The numerical solution of the nonlocal kinetic equation allows to simulate heavy ion reactions around Fermi energy. The expansion velocity and density profile show specific radial dependence which can be described with a Tsallis exponent of $q=5/3$. This
Morawetz, Klaus
core   +3 more sources

Universality of miscible–immiscible phase separation dynamics in two-component Bose–Einstein condensates

open access: yesNew Journal of Physics, 2019
We investigate the non-equilibrium dynamics across the miscible–immiscible phase separation in a binary mixture of Bose–Einstein condensates. The excitation spectra reveal that the Landau critical velocity vanishes at the critical point, where the ...
Xunda Jiang   +3 more
doaj   +1 more source

Groundstates of nonlinear Choquard equations: Hardy–Littlewood–Sobolev critical exponent [PDF]

open access: yes, 2014
We consider nonlinear Choquard equation where N ≥ 3, V ∈ L∞(ℝN) is an external potential and Iα(x) is the Riesz potential of order α ∈ (0, N). The power in the nonlocal part of the equation is critical with respect to the Hardy–Littlewood–Sobolev ...
Vitaly Moroz, Jean Van Schaftingen
semanticscholar   +1 more source

Dimensional Dependence of Critical Exponent of the Anderson Transition in the Orthogonal Universality Class [PDF]

open access: yes, 2014
We report improved numerical estimates of the critical exponent of the Anderson transition in Anderson’s model of localization in d = 4 and 5 dimensions.
Yoshiki Ueoka, K. Slevin
semanticscholar   +1 more source

Critical exponent for the quantum spin Hall transition in Z_2 network model

open access: yes, 2011
We have estimated the critical exponent describing the divergence of the localization length at the metal-quantum spin Hall insulator transition. The critical exponent for the metal-ordinary insulator transition in quantum spin Hall systems is known to ...
Kobayashi, K., Ohtsuki, T., Slevin, K.
core   +1 more source

The Oslo model, hyperuniformity, and the quenched Edwards-Wilkinson model [PDF]

open access: yes, 2016
We present simulations of the 1-dimensional Oslo rice pile model in which the critical height at each site is randomly reset after each toppling. We use the fact that the stationary state of this sandpile model is hyperuniform to reach system of sizes $>
Dhar, Deepak   +2 more
core   +2 more sources

Critical Exponents for Random Knots [PDF]

open access: yesPhysical Review Letters, 2000
The size of a zero thickness (no excluded volume) polymer ring is shown to scale with chain length $N$ in the same way as the size of the excluded volume (self-avoiding) linear polymer, as $N^ $, where $ \approx 0.588$. The consequences of that fact are examined, including sizes of trivial and non-trivial knots.
openaire   +4 more sources

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