Perturbation theory (quantum mechanics)

Known as: Perturbation, Perturbation (quantum mechanics), Atomic level deviation 
In quantum mechanics, perturbation theory is a set of approximation schemes directly related to mathematical perturbation for describing a… (More)
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2005
2005
Adaptive perturbation is a new method for perturbatively computing the eigenvalues and eigenstates of quantum mechanical… (More)
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2005
2005
Adaptive perturbation is a new method for perturbatively computing the eigenvalues and eigenstates of quantum mechanical… (More)
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Highly Cited
2003
Highly Cited
2003
We investigate two classes of D-branes in 2-d string theory, corresponding to extended and localized branes, respectively. We… (More)
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Highly Cited
2002
Highly Cited
2002
In this paper, we study the matrix model proposed by Berenstein, Maldacena, and Nastase to describe M-theory on the maximally… (More)
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1999
1999
  • 1999
After revealing difficulties of the standard time-dependent perturbation theory in quantum mechanics mainly from the viewpoint of… (More)
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1998
1998
We study perturbation theory in certain quantum mechanics problems in which the perturbing potential diverges at some points… (More)
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Highly Cited
1998
Highly Cited
1998
The 't Hooft expansion of SU(N) Chern-Simons theory on S' is proposed to be exactly dual to the topological closed string theory… (More)
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Highly Cited
1996
Highly Cited
1996
A new functional calculus, developed recently for a fully non-perturbative treatment of quantum gravity, is used to begin a… (More)
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Highly Cited
1995
Highly Cited
1995
We study the operator that corresponds to the measurement of volume, in non-perturbative quantum gravity, and we compute its… (More)
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Highly Cited
1995
Highly Cited
1995
A long-standing puzzle about the heterotic string has been what happens when an instanton shrinks to zero size. It is argued here… (More)
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