189 citations · 270 across the 5 of their papers we have counts for
5 papers
Lower bounds for the fidelity of entangled state preparation
R. D. Somma, J. Chiaverini, D. J. Berkeland
Estimating the fidelity of state preparation in multi-qubit systems is generally a time-consuming task. Nevertheless, this complexity can be reduced if the desired state can be cha…
Photoionization of strontium for trapped-ion quantum information processing
K. Vant, J. Chiaverini, W. Lybarger +1
We report a demonstration of simple and effective loading of strontium ions into a linear radio frequency Paul trap using photoionization. The ionization pathway is 5s2 1S0 -- 5s5p…
Tests for non-randomness in quantum jumps
D. J. Berkeland, D. A. Raymondson, V. M. Tassin
In a fundamental test of quantum mechanics, we have observed 228~000 quantum jumps of a single trapped and laser cooled Sr ion. This represents a statistical increase of…
Destabilization of dark states and optical spectroscopy in Zeeman-degenerate atomic systems
D. J. Berkeland, M. G. Boshier
We present a general discussion of the techniques of destabilizing dark states in laser-driven atoms with either a magnetic field or modulated laser polarization. We show that the…
Quantum state manipulation of trapped atomic ions
D. J. Wineland, C. Monroe, D. M. Meekhof +7
A single laser-cooled and trapped 9Be+ ion is used to investigate methods of coherent quantum-state synthesis and quantum logic. We create and characterize nonclassical states of m…