131 citations · 512 across the 18 of their papers we have counts for
17 papers
Directional emission of single photons from small atomic samples
Yevhen Miroshnychenko, Uffe V. Poulsen, Klaus Mølmer
We provide a formalism to describe deterministic emission of single photons with tailored spatial and temporal profiles from a regular array of multi-level atoms. We assume that a…
Correcting errors in a quantum gate with pushed ions via optimal control
U. V. Poulsen, S. Sklarz, D. Tannor +1
We analyze in detail the so-called "pushing gate" for trapped ions, introducing a time dependent harmonic approximation for the external motion. We show how to extract the average…
Correlations in local measurements on a quantum state, and complementarity as an explanation of nonclassicality
Shengjun Wu, Uffe V. Poulsen, Klaus Mølmer
We consider the classical correlations that two observers can extract by measurements on a bipartite quantum state, and we discuss how they are related to the quantum mutual inform…
Atomic quantum superposition state generation via optical probing
Anne E. B. Nielsen, Uffe V. Poulsen, Antonio Negretti +1
We analyze the performance of a protocol to prepare an atomic ensemble in a superposition of two macroscopically distinguishable states. The protocol relies on conditional measurem…
Pair correlated atoms with a twist
Uffe V. Poulsen, Klaus Molmer
We present an analysis of the quantum state resulting from the dissociation of diatomic molecules prepared in a condensate vortex state. The many-body state preserves the rotationa…
Quantum Superposition State Production by Continuous Observations and Feedback
Antonio Negretti, Uffe V. Poulsen, Klaus Molmer
We present a protocol for generation of superpositions of states with distinguishable field amplitudes in an optical cavity by quantum nondemolition photon number measurements and…