TY - JOUR
T1 - Tunnelling in 'massless' quantum mechanics
AU - Krive, I. V.
AU - Malomed, B. A.
AU - Rozhavsky, A. S.
PY - 1992
Y1 - 1992
N2 - The problem of tunnelling in 'topological' (massless) quantum mechanics with an anharmonic potential is considered. A simple method to calculate the imaginary part of action for the family of potentials, U(x,y)=(xy)n, is proposed. The tunnelling action is determined by the pole contribution only (on the complex-time plane), in a contrast to the ordinary (massive) quantum mechanics, in which the tunnelling action is always determined by the branch point contribution.
AB - The problem of tunnelling in 'topological' (massless) quantum mechanics with an anharmonic potential is considered. A simple method to calculate the imaginary part of action for the family of potentials, U(x,y)=(xy)n, is proposed. The tunnelling action is determined by the pole contribution only (on the complex-time plane), in a contrast to the ordinary (massive) quantum mechanics, in which the tunnelling action is always determined by the branch point contribution.
UR - http://www.scopus.com/inward/record.url?scp=36149029665&partnerID=8YFLogxK
U2 - 10.1088/0305-4470/25/8/010
DO - 10.1088/0305-4470/25/8/010
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AN - SCOPUS:36149029665
SN - 0305-4470
VL - 25
SP - L439-L442
JO - Journal of Physics A: Mathematical and General
JF - Journal of Physics A: Mathematical and General
IS - 8
M1 - 010
ER -