198 citations · 415 across the 5 of their papers we have counts for
5 papers
Optimal control of entangling operations for trapped ion quantum computing
V. Nebendahl, H. Haffner, C. F. Roos
Optimal control techniques are applied for the decomposition of unitary quantum operations into a sequence of single-qubit gates and entangling operations. To this end, we modify a…
Geometric phase gate on an optical transition for ion trap quantum computation
K. Kim, C. F. Roos, L. Aolita +3
We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates med…
High-fidelity ion-trap quantum computing with hyperfine clock states
L. Aolita, K. Kim, J. Benhelm +2
We propose the implementation of a geometric-phase gate on magnetic-field-insensitive qubits with -dependent forces for trapped ion quantum computing. The force is exerted…
Nonlinear coupling of continuous variables at the single quantum level
C. F. Roos, T. Monz, K. Kim +4
We experimentally investigate nonlinear couplings between vibrational modes of strings of cold ions stored in linear ion traps. The nonlinearity is caused by the ions' Coulomb inte…
Process tomography of ion trap quantum gates
M. Riebe, K. Kim, P. Schindler +7
A crucial building block for quantum information processing with trapped ions is a controlled-NOT quantum gate. In this paper, two different sequences of laser pulses implementing…