Towards a time reversal mirror for quantum systems. Pastawski, H. M., Danieli, E. P., Calvo, H. L., & Torres, L. E. F.<nbsp>F. EPL (Europhysics Letters), 77(4):40001, 2007.
Paper abstract bibtex The reversion of the time evolution of a quantum state can be achieved by changing the sign of the Hamiltonian as in the Loschmidt echo and polarization echo experiment in NMR. In this work we describe an alternative mechanism inspired by the acoustic time reversal mirror. By solving the inverse time problem in a discrete space we develop a new procedure, the perfect inverse filter . It achieves the exact time reversion in a given region by reinjecting a prescribed wave function at the region's boundary.
@article{ Pastawski2007,
author = {Pastawski, H. M. and Danieli, E. P. and Calvo, H. L. and Foa Torres,
L. E. F.},
title = {Towards a time reversal mirror for quantum systems},
journal = {EPL (Europhysics Letters)},
year = {2007},
volume = {77},
pages = {40001},
number = {4},
abstract = {The reversion of the time evolution of a quantum state can be achieved
by changing the sign of the Hamiltonian as in the Loschmidt echo
and polarization echo experiment in NMR. In this work we describe
an alternative mechanism inspired by the acoustic time reversal mirror.
By solving the inverse time problem in a discrete space we develop
a new procedure, the perfect inverse filter . It achieves the exact
time reversion in a given region by reinjecting a prescribed wave
function at the region's boundary.},
owner = {lefft},
timestamp = {2012.09.24},
url = {http://stacks.iop.org/0295-5075/77/i=4/a=40001}
}
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