RT Journal Article
T1 Quantum Zeno effect for a free-moving particle
A1 Porras, Miguel A.
A1 Luis Aina, Alfredo
A1 Gonzalo Fonrodona, Isabel
AB Although the quantum Zeno effect takes its name from Zeno’s arrow paradox, the effect of frequently observing the position of a freely moving particle on its motion has not been analyzed in detail in the frame of standard quantum mechanics. We study the evolution of a moving free particle while monitoring whether it lingers in a given region of space, and explain the dependence of the lingering probability on the frequency of the measurements and the initial momentum of the particle. Stopping the particle entails the emergence of Schrödinger cat states during the observed evolution, closely connected to the high-order diffraction modes in Fabry-Pérot optical resonators.
PB American Physical Society
SN 1050-2947
YR 2014
FD 2014
LK https://hdl.handle.net/20.500.14352/33862
UL https://hdl.handle.net/20.500.14352/33862
LA eng
NO ©2014 American Physical Society. We acknowledge support from Projects of the Spanish Ministerio de Economía y Competitividad No. MTM2012- 39101-C02-01 (M.A.P.), No. FIS2013-41709-P (M.A.P.), No. FIS2013-41709-P (I.G.), and No. FIS2012-35583 (A. L.).
NO Spanish Ministerio de Economía y Competitividad
DS Docta Complutense
RD 18 abr 2025