TY - GEN

T1 - Measurement of the negative kinetic energy of tunneling particles

AU - Aharonov, Yakir

AU - Popescu, Sandu

AU - Rohrlich, Daniel

AU - Vaidman, Lev

PY - 1992

Y1 - 1992

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.

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

ER -