56 citations · 207 across the 10 of their papers we have counts for
10 papers
Spontaneous recoil effects of optical pumping on trapped atoms
S. Wallentowitz, P. E. Toschek
The recoil effects of spontaneous photon emissions during optical pumping of a trapped three-level atom are exactly calculated. Without resort to the Lamb-Dicke approximation, and…
Robust "trapping states" in the motion of a trapped ion
S. Wallentowitz, W. Vogel, P. E. Toschek
A novel robust mechanism for the generation of "trapping states" is shown to exist in the coupling of a two-level system with an oscillator, which is based on nonlinearities in the…
Comment on "Impossibility of distant indirect measurement of the quantum Zeno effect"
S. Wallentowitz, P. E. Toschek
In the paper by M. Hotta and M. Morikawa [Phys. Rev. A 69, 052114 (2004)] the non-existence of the quantum Zeno effect caused by indirect measurements has been claimed. It is shown…
A relaxationless demonstration of the Quantum Zeno Paradox on an individual atom
Chr. Balzer, Th. Hannemann, D. Reiß +3
The driven evolution of the spin of an individual atomic ion on the ground-state hyperfine resonance is impeded by the observation of the ion in one of the pertaining eigenstates.…
Estimation of qubit states in a factorizing basis
Th. Hannemann, D. Reiss, Ch. Balzer +3
The optimal estimation of a quantum mechanical 2-state system (qubit) - with N identically prepared qubits available - is obtained by measuring all qubits simultaneously in an enta…
From Spectral Relaxation to Quantified Decoherence
Chr. Balzer, Th. Hannemann, D. Reiß +3
Quantum information processing (QIP) requires thorough assessment of decoherence. Atoms or ions prepared for QIP often become addressed by radiation within schemes of alternating m…