Effect of a finite-time resolution on Schrödinger cat states in complex collisions

L. Benet; S. Yu Kun; Wang Qi; V. Denisov

doi:10.1016/j.physletb.2004.11.005

Effect of a finite-time resolution on Schrödinger cat states in complex collisions

L. Benet, S. Yu Kun, Wang Qi, V. Denisov

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We study the effect of finite-time resolution on coherent superpositions of clockwise and anticlockwise rotating wave packets in the regime of strongly overlapping resonances of the intermediate complex. Such highly excited deformed complexes may be created in binary collisions of heavy-ions, molecules and atomic clusters. It is shown that time averaging reduces the interference fringes acting effectively as dephasing. We propose a simple estimate of the "critical" time averaging interval. For the time averaging intervals bigger than the critical one the interference fringes wash out appreciably. This is confirmed numerically. We evaluate minimal energy intervals for measurements of the excitation functions needed to observe the Schrödinger cat states. These should be easily observable in heavy-ion scattering. Such an experiment is suggested.

Original language	English
Pages (from-to)	101-105
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	605
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2004.11.005
Publication status	Published - 6 Jan 2005

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10.1016/j.physletb.2004.11.005

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title = "Effect of a finite-time resolution on Schr{\"o}dinger cat states in complex collisions",

abstract = "We study the effect of finite-time resolution on coherent superpositions of clockwise and anticlockwise rotating wave packets in the regime of strongly overlapping resonances of the intermediate complex. Such highly excited deformed complexes may be created in binary collisions of heavy-ions, molecules and atomic clusters. It is shown that time averaging reduces the interference fringes acting effectively as dephasing. We propose a simple estimate of the {"}critical{"} time averaging interval. For the time averaging intervals bigger than the critical one the interference fringes wash out appreciably. This is confirmed numerically. We evaluate minimal energy intervals for measurements of the excitation functions needed to observe the Schr{\"o}dinger cat states. These should be easily observable in heavy-ion scattering. Such an experiment is suggested.",

keywords = "Atomic clusters, Heavy-ion scattering, Schr{\"o}dinger cat states, Strongly overlapping resonances, Wave packets",

author = "L. Benet and Kun, {S. Yu} and Wang Qi and V. Denisov",

year = "2005",

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doi = "10.1016/j.physletb.2004.11.005",

language = "English",

volume = "605",

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journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

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TY - JOUR

T1 - Effect of a finite-time resolution on Schrödinger cat states in complex collisions

AU - Benet, L.

AU - Kun, S. Yu

AU - Qi, Wang

AU - Denisov, V.

PY - 2005/1/6

Y1 - 2005/1/6

N2 - We study the effect of finite-time resolution on coherent superpositions of clockwise and anticlockwise rotating wave packets in the regime of strongly overlapping resonances of the intermediate complex. Such highly excited deformed complexes may be created in binary collisions of heavy-ions, molecules and atomic clusters. It is shown that time averaging reduces the interference fringes acting effectively as dephasing. We propose a simple estimate of the "critical" time averaging interval. For the time averaging intervals bigger than the critical one the interference fringes wash out appreciably. This is confirmed numerically. We evaluate minimal energy intervals for measurements of the excitation functions needed to observe the Schrödinger cat states. These should be easily observable in heavy-ion scattering. Such an experiment is suggested.

AB - We study the effect of finite-time resolution on coherent superpositions of clockwise and anticlockwise rotating wave packets in the regime of strongly overlapping resonances of the intermediate complex. Such highly excited deformed complexes may be created in binary collisions of heavy-ions, molecules and atomic clusters. It is shown that time averaging reduces the interference fringes acting effectively as dephasing. We propose a simple estimate of the "critical" time averaging interval. For the time averaging intervals bigger than the critical one the interference fringes wash out appreciably. This is confirmed numerically. We evaluate minimal energy intervals for measurements of the excitation functions needed to observe the Schrödinger cat states. These should be easily observable in heavy-ion scattering. Such an experiment is suggested.

KW - Atomic clusters

KW - Heavy-ion scattering

KW - Schrödinger cat states

KW - Strongly overlapping resonances

KW - Wave packets

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U2 - 10.1016/j.physletb.2004.11.005

DO - 10.1016/j.physletb.2004.11.005

M3 - Article

SN - 0370-2693

VL - 605

SP - 101

EP - 105

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Effect of a finite-time resolution on Schrödinger cat states in complex collisions

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