The control of individual quantum systems is now a reality in a variety of physical settings.
Feedback control is an important class of control methods because of its ability to reduce the …

This paper starts with a brief review of the topic of strong and weak pre-and post-selected
(PPS) quantum measurements, as well as weak values, and afterwards presents original …

There was a time when cultured Eng-lishmen would embark on a Grand Tour of Europe,
visiting important cities and inspecting monuments and vistas. The book of Penrose is a …

The measurement sensitivity of quantum probes using N uncorrelated particles is restricted
by the standard quantum limit, which is proportional to 1/N. This limit, however, can be …

The wavefunction is the complex distribution used to completely describe a quantum system,
and is central to quantum theory. But despite its fundamental role, it is typically introduced as …

Quantum random walks Page 1 PHYSICAL REVIEW A VOLUME 48, NUMBER 2 Quantum
random walks AUGUST 1993 Y. Aharonov, * L. Davidovich, ~ and N. Zagury~ Center for …

We have detected a spin-dependent displacement perpendicular to the refractive index
gradient for photons passing through an air-glass interface. The effect is the photonic …

We exhibit an orthogonal set of product states of two three-state particles that nevertheless
cannot be reliably distinguished by a pair of separated observers ignorant of which of the …

Features of consciousness difficult to understand in terms of conventional neuroscience
have evoked application of quantum theory, which describes the fundamental behavior of …

Feedback loops are central to most classical control procedures. A controller compares the
signal measured by a sensor (system output) with the target value or set-point. It then adjusts …