Develo** a comprehensive model of the early universe that describes events and
conditions prior to recombination has proved difficult. Using a new approach, we express …

Quantum mechanics ascribes to the ground state of the electromagnetic radiation zero-point
electric field fluctuations that permeate empty space at all frequencies. No energy can be …

Unifying quantum and classical physics has proved difficult as their postulates are
conflicting. Using the notion of counts of the fundamental measures—length, mass, and time …

This article gives an overview on recent theoretical progress in controlling the charge and
spin dynamics in low-dimensional electronic systems by means of ultrashort and …

Squeezed states,,, of electromagnetic radiation have quantum fluctuations below those of
the vacuum field. They offer a unique resource for quantum information systems and …

The standard description of cavity-modified molecular reactions typically involves a single
(resonant) mode, while in reality, the quantum cavity supports a range of photon modes …

According to quantum field theory, empty space—the ground state with all real excitations
removed—is not empty, but filled with quantum-vacuum fluctuations. Their presence can …

Electro-optic quantum coherent interfaces map the amplitude and phase of a quantum
signal directly to the phase or intensity of a probe beam. At terahertz frequencies, a …

We demonstrate time-domain sampling of mid-infrared electric field transients and their
conjugate counterparts exploiting the dynamical Pockels effect. To this end, the complete …

We describe vacuum fluctuations and photon-field correlations in interacting quantum
mechanical light-matter systems by generalizing the application of mixed quantum classical …