2 citations · 4 across the 4 of their papers we have counts for
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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…
Effects of noisy entangled state transmission on quantum teleportation
Holger F. Hofmann, Kenji Tsujino, Shigeki Takeuchi
Quantum teleportation requires the transmission of entangled pairs to Alice and Bob. Transmission errors modify the entangled state before the teleportation can be performed. We de…