@article{HoffmannBostroemFelbinger2005,
  author    = {Hoffmann, H. and Bostr{\"o}m, Kim and Felbinger, Timo},
  title     = {Comment on Secure direct communication with a quantum one-time pad},
  year      = {2005},
  abstract  = {In the paper [Phys. Rev. A 69, 052319 (2004)], a quantum direct communication protocol is proposed which is claimed to be unconditionally secure even for the case of a noisy channel. We show that this is not the case by giving an undetectable attack scheme},
  language  = {en}
}
@article{BostroemFelbinger2002,
  author    = {Bostr{\"o}m, Kim and Felbinger, Timo},
  title     = {Lossless quantum data compression and variable-length coding},
  year      = {2002},
  abstract  = {In order to compress quantum messages without loss of information it is necessary to allow the length of the encoded messages to vary. We develop a general framework for variable-length quantum messages in close analogy to the classecal case and show that lossless compression is only possible if the message to be compressed is known to the sender. The lossless compression of an ensemble of messages is bounded from below by its von-Neumann entropy. We show that it is possible to reduce the number of qbits passing through a quantum channel even below the von-Neumann entropy by adding a classical side-channel. We give an explicit communication protocol that realizes lossless and instantaneous quantum data compression. This protocol can be used for both online quatum communication and storage of quantum data.},
  language  = {en}
}
@article{FelbingerSchillerMlynek1998,
  author    = {Felbinger, Timo and Schiller, Stephan and Mlynek, J{\"u}rgen},
  title     = {Oscillation and generation of nonclassical states in three-photon down conversion},
  year      = {1998},
  abstract  = {The process of 3-photon down conversion 3 omega -> omega + omega + omega in an optical cavity is analyzed theoretically. A classical feature of this system is a first-order transition of the fundamental mode above a threshold 3omega pump power. We calculate the quantum properties of the steady state both using quantum trajectory simulations, and by perturbation expansion of the density operator. A nongaussian Wigner function exhibiting a threefold symmetry is found. Above threshold the Wigner function displays separate peaks among which tunneling occurs.},
  language  = {en}
}
@article{FelbingerSantosWilkensetal.2000,
  author    = {Felbinger, Timo and Santos, L. and Wilkens, Martin and Lewenstein, Maciej},
  title     = {Time Correlations of a laser-induced Bose-Einstein condensate},
  year      = {2000},
  abstract  = {We analyze the multi-time correlations of a laser-induced Bose Einstein condensate. We use quantum stochastic methods to obtain under certain circumstances a Fokker-Planck equation which describes the phase-difussion process, and obtain an analytical expression of the two-time correlations. We perform also quantum Monte Carlo numerical simulations of the correlations, which are in good agreement with the predicted analytical results.},
  language  = {en}
}
@article{EisertFelbingerPapadopolousetal.2000,
  author    = {Eisert, Jens and Felbinger, Timo and Papadopolous, P. and Plenio, M. B. and Wilkens, Martin},
  title     = {Classical information and distillable entanglement},
  year      = {2000},
  abstract  = {We establish a quantitative connection between the amount of lost classical information about a quantum state and the concomitant loss of entanglement. Using menthods that have been developed for the optimal purification of miced states, we find a class of miced states with known distillable entanglement. These results can be used to determine the quantum capacity of a quantum channel which randomizes the order of transmitted signals.},
  language  = {en}
}
@article{FelbingerWilkens1999,
  author    = {Felbinger, Timo and Wilkens, Martin},
  title     = {Stochastic Wave-function Simulation of Two-time Correlation Functions},
  year      = {1999},
  abstract  = {We propose an algorithm for the numerical simulation of two-time correlation functions by means of stochastic wave function. As a first application, we investigate the two-time correlation function of a nonlinear optical parametric oscillator.},
  language  = {en}
}