Volume 76, Number 4, November 2006
|Page(s)||541 - 546|
|Published online||18 October 2006|
An exactly solvable model of an avalanche-type measuring device
The Harrison M. Randall Laboratory of Physics, The University of Michigan Ann Arbor, MI 48109-1040, USA
Accepted: 19 September 2006
A quantum many-body model is presented with features similar to those of certain particle detectors. The energy spectrum contains a single, thermodynamically metastable “ready” state and macroscopically-distinct, ground “pointer” states. Transitions into classical-like states can be triggered by a single particle with the help of the thermal bath. Schrödinger cat states are associated with superpositions of inequivalent vacua, thus suggestion a relationship between wave function collapse and the dynamics of symmetry breaking in phase transformations.
PACS: 03.65.Ta – Foundations of quantum mechanics; measurement theory / 03.70.+k – Theory of quantized fields
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.