TY - JOUR
T1 - Small time behaviour of an unstable quantum system
AU - Levitan, Jacob
PY - 1988/5/30
Y1 - 1988/5/30
N2 - It is shown that whether the initial quadratic behaviour for an unstable quantum system extends up to the exponential region or the system enters an oscillatory region before this, depends on whether the cutt-off of the spectral function occurs at the real part of the pole contribution or much further out.
AB - It is shown that whether the initial quadratic behaviour for an unstable quantum system extends up to the exponential region or the system enters an oscillatory region before this, depends on whether the cutt-off of the spectral function occurs at the real part of the pole contribution or much further out.
UR - http://www.scopus.com/inward/record.url?scp=0001269099&partnerID=8YFLogxK
U2 - 10.1016/0375-9601(88)90329-5
DO - 10.1016/0375-9601(88)90329-5
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AN - SCOPUS:0001269099
SN - 0375-9601
VL - 129
SP - 267
EP - 272
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 5-6
ER -