2 citations · 4 across the 5 of their papers we have counts for
13 papers · 1 filter
Efficient tests for experimental quantum gates
Holger F. Hofmann
Realistic quantum gates operate at non-vanishing noise levels. Therefore, it is necessary to evaluate the performance of each device according to some experimentally observable cri…
A study on the shape of two-photon wavefunctions after the nonlinear interaction with a one-dimensional atom
Kunihiro Kojima, Holger F. Hofmann, Shigeki Takeuchi +1
We study the interaction of Gaussian one- and two-photon pulses with a single two-level atom based on a one-dimensional model of pulse propagation to and from the atom. The charact…
Characterization of entanglement using sum uncertainty relations for N-level systems
Holger F. Hofmann, Shigeki Takeuchi
The efficient experimental verification of entanglement requires an identification of the essential physical properties that distinguish entangled states from non-entangled states.…
Realization of a resonant non-linear phase flip in cavity quantum electrodynamics
Holger F. Hofmann, Kunihiro Kojima, Shigeki Takeuchi +1
Optical nonlinearities sensitive to individual photons may be extremely useful as elements in quantum logic circuits for photonic qubits. A much cited example is the work of Turche…
Realization of quantum operations on photonic qubits by linear optics and post-selection
Holger F. Hofmann, Shigeki Takeuchi
One of the greatest difficulties in the applications of single photon polarization states as qubits is the realization of controlled interactions between two photons. Recently, it…
Continuous variable teleportation of single photon states (Proceedings version)
Toshiki Ide, Holger F. Hofmann, Takayoshi Kobayashi +1
We investigate the changes to a single photon state caused by the non-maximal entanglement in continuous variable quantum teleportation. It is shown that the teleportation measurem…