The term'nonclassical states' refers to the quantum states that cannot be produced in the
usual sources of light, such as lasers or lamps, rather than those requiring more …

Photon blockade, in analogy to Coulomb's or phonon blockades, is a phenomenon when a
single photon in a nonlinear cavity blocks the transmission of a second photon. This effect …

We report on Raman sideband cooling of Mg 25+ to sympathetically cool the secular modes
of motion in a Mg 25+-Al 27+ two-ion pair to near the three-dimensional (3D) ground state …

Optical clocks have been demonstrated to be good choices to redefine the SI “second.” With
this goal, we have constructed a quantum-logic-based 27 Al+ ion optical clock with a …

We introduce, for each state of a bosonic quantum field, its quadrature coherence scale
(QCS), a measure of the range of its quadrature coherences. Under coupling to a thermal …

This paper explores the use of laboratory closed loop learning control to suppress the effects
of decoherence in quantum dynamics. Simulations of the process are performed in …

The advancement of optical atomic clocks in the past two decades has motivated many
potential applications in navigation, communication, and science. Accurate optical clocks …

The behavior of systems far from equilibrium is often complex and unpredictable,
challenging and sometimes overturning the physical intuition derived from equilibrium …

We study the decoherence of even and odd superpositions of displaced number states in
the frameworks of the standard master equation, describing phase insensitive attenuators …

Within the framework of the theory of open systems based on completely positive quantum
dynamical semigroups, we determine the degree of quantum decoherence of a harmonic …