Measurement of the negative kinetic energy of tunneling particles

Yakir Aharonov; Sandu Popescu; Daniel Rohrlich; Lev Vaidman

Measurement of the negative kinetic energy of tunneling particles

Yakir Aharonov, Sandu Popescu, Daniel Rohrlich, Lev Vaidman

Department of Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The phenomenon of barrier penetration, such as tunnelling through a potential barrier, is an outstanding example of quantum behavior. Quantum particles can be found in regions where a classical particle coidd never go. since it would have negative kinetic energy. But in quantum theory, too, the eigenvalues of kinetic energy cannot be negative. How, then, can a quantum particle" tunnel"? The apparent paradox is resolved by noting that the wave function of a tunnelling particle only partly overlaps the forbidden region.

Original language	English
Title of host publication	Proc. 4th Int. Symp. Foundations of Quantum Mechanics, Tokyo
Editors	Masaru Tsukada
State	Published - 1993

Cite this

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title = "Measurement of the negative kinetic energy of tunneling particles",

abstract = " The phenomenon of barrier penetration, such as tunnelling through a potential barrier, is an outstanding example of quantum behavior. Quantum particles can be found in regions where a classical particle coidd never go. since it would have negative kinetic energy. But in quantum theory, too, the eigenvalues of kinetic energy cannot be negative. How, then, can a quantum particle{"} tunnel{"}? The apparent paradox is resolved by noting that the wave function of a tunnelling particle only partly overlaps the forbidden region.",

author = "Yakir Aharonov and Sandu Popescu and Daniel Rohrlich and Lev Vaidman",

year = "1993",

language = "English",

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T1 - Measurement of the negative kinetic energy of tunneling particles

AU - Aharonov, Yakir

AU - Popescu, Sandu

AU - Rohrlich, Daniel

AU - Vaidman, Lev

PY - 1993

Y1 - 1993

N2 - The phenomenon of barrier penetration, such as tunnelling through a potential barrier, is an outstanding example of quantum behavior. Quantum particles can be found in regions where a classical particle coidd never go. since it would have negative kinetic energy. But in quantum theory, too, the eigenvalues of kinetic energy cannot be negative. How, then, can a quantum particle" tunnel"? The apparent paradox is resolved by noting that the wave function of a tunnelling particle only partly overlaps the forbidden region.

AB - The phenomenon of barrier penetration, such as tunnelling through a potential barrier, is an outstanding example of quantum behavior. Quantum particles can be found in regions where a classical particle coidd never go. since it would have negative kinetic energy. But in quantum theory, too, the eigenvalues of kinetic energy cannot be negative. How, then, can a quantum particle" tunnel"? The apparent paradox is resolved by noting that the wave function of a tunnelling particle only partly overlaps the forbidden region.

M3 - Conference contribution

SN - 4900526096

SN - 9784900526099

BT - Proc. 4th Int. Symp. Foundations of Quantum Mechanics, Tokyo

A2 - Tsukada, Masaru

ER -

Measurement of the negative kinetic energy of tunneling particles

Abstract

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