RT Journal Article
T1 Potential barrier mimicking frequent location measurements in quantum Zeno dynamics.
A1 Porras, Miguel A.
A1 Gonzalo Fonrodona, Isabel
A1 Luis Aina, Alfredo
AB We show that quantum Zeno dynamics can be mimicked by the isolated evolution of an unobserved system in an effective potential. Monitoring frequently whether a particle remains in a region of space leads to the same wave-packet dynamics as placing the region on top of a potential barrier and letting the particle evolve on its own, without external couplings. We focus on very frequent but not continuous observation so that the particle abandons the initial region with some finite probability. The height of the barrier relative to the surroundings for a high frequency. of the observations being mimicked is found numerically to be hν/2,where h is Planck's constant.
PB American Physical Society
SN 1050-2947
YR 2016
FD 2016-04-07
LK https://hdl.handle.net/20.500.14352/24457
UL https://hdl.handle.net/20.500.14352/24457
LA eng
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NO ©2016 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. MTM2015-63914-P (M.A.P.), No. FIS2013-41709-P (M.A.P. and I.G.), and No. FIS2012-35583 (A.L.) and from the Comunidad Autónoma de Madrid research consortium QUITEMAD+ Grant No. S2013/ICE-2801 (A.L.). M.A.P. acknowledges helpful discussions with J. Usera.
NO Ministerio de Economía y Competitividad (MINECO)
NO Comunidad Autónoma de Madrid
DS Docta Complutense
RD 1 sept 2024