Principle of limiting absorption for N-body Schr�dinger operators ? A remark on the commutator method

1989 ◽  
Vol 17 (1) ◽  
pp. 31-36 ◽  
Author(s):  
H. Tamura
Keyword(s):  
Commutator Method

scholarly journals Mourre theory for time-periodic systems

1998 ◽  
Vol 149 ◽  
pp. 193-210 ◽  
Author(s):  
Koichiro Yokoyama
Keyword(s):  
Asymptotic Behavior ◽  
Adjoint Operator ◽  
The Self ◽  
Periodic Systems ◽  
Great Progress ◽  
Time Periodic ◽  
Commutator Method

Abstract.Studies for A.C. Stark Hamiltonian are closely related to that for the self-adjoint operator on torus. In this paper we use Mourre’s commutator method, which makes great progress for the study of time-independent Hamiltonian. By use of it we show the asymptotic behavior of the unitary propagator as σ → ± ∞.

Application of the commutator method for boson mapping

1989 ◽  
Vol 221 (2) ◽  
pp. 103-108 ◽  
Author(s):  
Débora Peres Menezes ◽  
Naotaka Yoshinaga ◽  
Dennis Bonatsos
Keyword(s):  
Commutator Method

Calculated self-energy contributions for annsvalence electron using the multiple-commutator method

1999 ◽  
Vol 59 (4) ◽  
pp. 2707-2711 ◽  
Author(s):  
Leonti Labzowsky ◽  
Igor Goidenko ◽  
Maria Tokman ◽  
Pekka Pyykkö
Keyword(s):  
Self Energy ◽  
Commutator Method

scholarly journals On a standard of mutual inductance

1907 ◽  
Vol 79 (532) ◽  
pp. 428-435 ◽  
Keyword(s):  
National Physical Laboratory ◽  
Mutual Inductance ◽  
Electrical Measurements ◽  
Working Standard ◽  
Standard Unit ◽  
Magnetic Testing ◽  
Physical Laboratory ◽  
Rayleigh Method ◽  
Geometrical Dimensions ◽  
Commutator Method

1. Introductory .—In many electrical measurements, such as those of capacity and inductance, as well as in the magnetic testing of iron, an accurately known standard of mutual inductance is of great value. It is sometimes convenient to derive such a standard from the standard unit of resistance, and this may be done in several ways, for example, by the well-known method of the ballistic galvanometer; or by Carey Foster’s method the mutual inductions may be tested against a condenser whose capacity has been found in terms of resistance and frequency by Maxwell’s commutator method; or it may be obtained directly in similar terms by the help of an unknown inductance by the Hughes-Rayleigh method. In the National Physical Laboratory I have used both of these latter methods (with the help of a vibration galvanometer) to obtain a working standard of mutual inductance. But this procedure is somewhat illogical, seeing that the unit of resistance has been itself commonly determined by the aid of mutual inductances calculated from the dimension of the coils or other conductors used; thus for the highest accuracy it is desirable to revert to a standard whose value can be determined solely from the geometrical dimensions. Accordingly, some eighteen months ago, I took in hand the investigation of a suitable design for such a standard, and I proceed to describe the result at which I arrived.

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