Coherent superposition states of a mesoscopic quantum object play a major role in our
understanding of the quantum to classical boundary, as well as in quantum-enhanced …

The precision of a quantum sensor can overcome its classical counterpart when its
constituents are entangled. In Gaussian squeezed states, quantum correlations lead to a …

Spin systems are an attractive candidate for quantum-enhanced metrology. Here we
develop a variational method to generate metrological states in small dipolar-interacting …

We investigate the sensitivity of a recently proposed method for precision measurement
[Phys. Rev. Lett. 106, 140502 (2011) PRLTAO 0031-9007 10.1103/PhysRevLett …

Entanglement-based technologies, such as quantum information processing, quantum
simulations and quantum-enhanced metrology, have the potential to revolutionize our way …

The ultimate miniaturization of electronic devices will probably require local and coherent
control of single electronic wavefunctions. Wavefunctions exist within both physical real …

Using an ensemble of atoms in an optical cavity, we engineer a family of nonlocal
Heisenberg Hamiltonians with continuously tunable anisotropy of the spin-spin couplings …

Manipulation of spin states at the single-atom scale underlies spin-based quantum
information processing and spintronic devices. These applications require protection of the …

Achieving time-domain control of quantum states with atomic-scale spatial resolution in
nanostructures is a long-term goal in quantum nanoscience and spintronics. Here, we …

A major challenge in quantum metrology is the generation of entangled states with a
macroscopic atom number. Here, we demonstrate experimentally that atomic squeezing …