9712039v2

related topics
{equation, function, exp}
{observables, space, algebra}
{classical, space, random}
{group, space, representation}
{phase, path, phys}

Change of Variable as Borel Resummation of Semiclassical Series

Stefan Giller, Piotr Milczarski

abstract: It is shown that a change of variable in 1-dim Schroedinger equation applied to the Borel summable fundamental solutions [Giller] is equivalent to Borel resummation of the fundamental solutions multiplied by suitably chosen $\hbar$-dependent constant. This explains why change of variable can improve JWKB formulae [Giller, Milczarski]. It is shown also that a change of variable alone cannot provide us with the exact JWKB formulae.

oai_identifier:
oai:arXiv.org:quant-ph/9712039
categories:
quant-ph
comments:
7 pages, uses article.sty art11.sty, 1 EPS figure
doi:
10.1088/0305-4470/32/6/009
arxiv_id:
quant-ph/9712039
journal_ref:
J.Phys.A32:955-976,1999
created:
1997-12-18
updated:
1998-07-14

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