An Approach To “Quantumness” In Coherent Control
Torsten Scholak, Paul W. Brumer · Advances in chemical physics · 2017
This chapter examines quantum control from a foundational perspective, relying upon modern concepts in quantum mechanics, such as entanglement, quantum erasure, nonlocality, and Bell tests to see how a truly quantum phase control scenario can be tested and built. It provides a detailed approach to examining the role of quantum mechanics in control scenarios that is applicable to other coherent control and to optimal control scenarios. The chapter further discusses ways to demonstrate complementarity in new, unconventional scenarios of true quantum coherent phase control, scenarios in which nonlinear response theory cannot be applied. It then addresses the question of how and when nontrivial aspects of quantum interference affect phase control. In this context, quantum interference and quantum mechanics are essentially synonymous. Since these aspects are absent in conventional phase control, the chapter extends the search to unconventional scenarios. To do so, it introduces a novel type of two-path interferometer, the “coherent control interferometer” (CCI).