62 citations · 98 across the 5 of their papers we have counts for
7 papers · 1 filter
Entanglement generation via a completely mixed nuclear spin bath
H. Christ, J. I. Cirac, G. Giedke
We show that qubits coupled sequentially to a mesoscopic static completely mixed spin bath via the Heisenberg interaction can become highly entangled. Straightforward protocols for…
Orthogonally-Driven Superconducting Qubit in Circuit QED
M. J. Storcz, M. Mariantoni, H. Christ +6
We consider a superconducting charge qubit coupled to distinct orthogonal electromagnetic field modes belonging to a coplanar wave guide and a microstrip transmission line resonato…
Quantum Description of Nuclear Spin Cooling in a Quantum Dot
H. Christ, J. I. Cirac, G. Giedke
We study theoretically the cooling of an ensemble of nuclear spins coupled to the spin of a localized electron in a quantum dot. We obtain a master equation for the state of the nu…
On-Chip Microwave Fock States and Quantum Homodyne Measurements
M. Mariantoni, M. J. Storcz, F. K. Wilhelm +6
We propose a method to couple metastable flux-based qubits to superconductive resonators based on a quantum-optical Raman excitation scheme that allows for the deterministic genera…
Quantum information processing using localized ensembles of nuclear spins
J. M. Taylor, G. Giedke, H. Christ +5
We describe a technique for quantum information processing based on localized en sembles of nuclear spins. A qubit is identified as the presence or absence of a collective excitati…
Four-Wave mixing in degenerate Fermi gases: Beyond the undepleted pump approximation
T. Miyakawa, H. Christ, C. P. Search +1
We analyze the full nonlinear dynamics of the four-wave mixing between an incident beam of fermions and a fermionic density grating. We find that when the number of atoms in the be…