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On the truncation of the harmonic oscillator wavepacket

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L Rebollo-Neira and S Jain

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LETTER TO THE EDITOR

We present an interesting result regarding the implication of truncating the wavepacket of the harmonic oscillator. We show that disregarding the non-significant tails of a function which is the superposition of eigenfunctions of the harmonic oscillator has a remarkable consequence: namely, there exist infinitely many different superpositions giving rise to the same function on the interval. Uniqueness, in the case of a wavepacket, is restored by a postulate of quantum mechanics.


PACS

03.65.Ge Solutions of wave equations: bound states

03.65.Fd Algebraic methods

02.10.-v Logic, set theory, and algebra

MSC

81Rxx Groups and algebras in quantum theory

81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other quantum-mechanical equations

Subjects

Mathematical physics

Quantum information and quantum mechanics

Dates

Issue 17 (29 April 2005)

Received 2 February 2005, in final form 17 March 2005

Published 13 April 2005



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