Controllability on relaxation-free subspaces: On the relationship between adiabatic population transfer and optimal control - Quantum PhysicsReport as inadecuate




Controllability on relaxation-free subspaces: On the relationship between adiabatic population transfer and optimal control - Quantum Physics - Download this document for free, or read online. Document in PDF available to download.

Abstract: We consider the optimal control problem of transferring population betweenstates of a quantum system where the coupling proceeds only via intermediatestates that are subject to decay. We pose the question whether it is generallypossible to carry out this transfer. For a single intermediate decaying state,we recover the Stimulated Raman Adiabatic Passage STIRAP process which weidentify as the global optimum in the limit of infinite control time. We alsopresent analytic solutions for the case of transfer that has to proceed via twoconsecutive intermediate decaying states. We show that in this case, for finitepower the optimal control does not approach perfect state transfer even in theinfinite time limit. We generalize our findings to characterize the topologiesof paths that can be achieved by coherent control under the assumption offinite power.



Author: Haidong Yuan, Christiane Koch, Peter Salamon, David Tannor

Source: https://arxiv.org/



DOWNLOAD PDF




Related documents