Greenleaf, A;
Kurylev, Y;
Lassas, M;
Uhlmann, G;
(2008)
Approximate Quantum Cloaking and Almost-Trapped States.
PHYS REV LETT
, 101
(22)
, Article 220404. 10.1103/PhysRevLett.101.220404.
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Abstract
We describe potentials which act as approximate cloaks for matter waves. These potentials are derived from ideal cloaks for the conductivity and Helmholtz equations. At most energies E, if a potential is surrounded by an approximate cloak, then it becomes almost undetectable and unaltered by matter waves originating externally to the cloak. For certain E, however, the approximate cloaks are resonant, supporting wave functions almost trapped inside the cloaked region and negligible outside. Applications include dc or magnetically tunable ion traps and beam switches.
| Type: | Article |
|---|---|
| Title: | Approximate Quantum Cloaking and Almost-Trapped States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.101.220404 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.101.220404 |
| Language: | English |
| Additional information: | © 2008 The American Physical Society |
| Keywords: | FREQUENCIES |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/120798 |
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