Approximate Quantum Cloaking and Almost-Trapped States
Approximate Quantum Cloaking and Almost-Trapped States
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 …