TY - JOUR
T1 - Autoresonant transition in the presence of noise and self-fields
AU - Barth, I.
AU - Friedland, L.
AU - Sarid, E.
AU - Shagalov, A. G.
PY - 2009/10/7
Y1 - 2009/10/7
N2 - A sharp threshold for resonant capture of an ensemble of trapped particles driven by chirped frequency oscillations is analyzed. It is shown that at small temperatures T, the capture probability versus driving amplitude is a smoothed step function with the step location and width scaling as α3/4 (α being the chirp rate) and (αT)1/2, respectively. Strong repulsive self-fields reduce the width of the threshold considerably, as the ensemble forms a localized autoresonant macroparticle.
AB - A sharp threshold for resonant capture of an ensemble of trapped particles driven by chirped frequency oscillations is analyzed. It is shown that at small temperatures T, the capture probability versus driving amplitude is a smoothed step function with the step location and width scaling as α3/4 (α being the chirp rate) and (αT)1/2, respectively. Strong repulsive self-fields reduce the width of the threshold considerably, as the ensemble forms a localized autoresonant macroparticle.
UR - http://www.scopus.com/inward/record.url?scp=70349873473&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.103.155001
DO - 10.1103/PhysRevLett.103.155001
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AN - SCOPUS:70349873473
SN - 0031-9007
VL - 103
JO - Physical Review Letters
JF - Physical Review Letters
IS - 15
M1 - 155001
ER -