622 citations · 2.6k across the 42 of their papers we have counts for
6 papers · 2 filters
Photon number states generated from a continuous-wave light source
Anne E. B. Nielsen, Klaus Molmer
Conditional preparation of photon number states from a continuous-wave nondegenerate optical parametric oscillator is investigated. We derive the phase space Wigner function for th…
Stationary light pulses in ultra cold atomic gasses
Kristian Rymann Hansen, Klaus Molmer
We present a theoretical treatment of electromagnetically induced transparency and light storage using standing wave coupling fields in a medium comprised of stationary atoms, such…
Estimation of fluctuating magnetic fields by an atomic magnetometer
Vivi Petersen, Klaus Molmer
We present a theoretical analysis of the ability of atomic magnetometers to estimate a fluctuating magnetic field. Our analysis makes use of a Gaussian state description of the ato…
Entanglement between remote continuous variable quantum systems: effects of transmission loss
Lars Bojer Madsen, Klaus Molmer
We study the effects of losses on the entanglement created between two separate atomic gases by optical probing and homodyne detection of the transmitted light. The system is well-…
Non-Gaussian states from continuous-wave Gaussian light sources
Klaus Molmer
We present a general analysis of the state obtained by subjecting the output from a continuous-wave (cw) Gaussian field to non-Gaussian measurements. The generic multimode state of…
Generation of a superposition of odd photon number states for quantum information networks
J. S. Neergaard-Nielsen, B. Melholt Nielsen, C. Hettich +2
We report on the experimental observation of quantum-network-compatible light described by a non-positive Wigner function. The state is generated by photon subtraction from a squee…