Results 41 to 50 of about 1,084,527 (331)
Quantum information to the home [PDF]
New Journal of Physics, 2011 A novel Raman-noise suppression scheme has enabled the first quantum key distribution (QKD) over a Gigabit-Ethernet PON carrying realistic data traffic. The DPSK-QKD system produced a sifted-key rate of 84kb/s with a Quantum-BER of 4%.
Choi, Iris +2 more
openaire +4 more sources
Quantum data processing and error correction [PDF]
, 1996 This paper investigates properties of noisy quantum information channels. We define a new quantity called {\em coherent information} which measures the amount of quantum information conveyed in the noisy channel.
A. Wehrl +14 more
core +3 more sources
npj Quantum Information, 2023 Quantum entanglement between an interfering particle and a detector for acquiring the which-path information plays a central role for enforcing Bohr’s complementarity principle.
Xin-Jie Huang +14 more
doaj +1 more source
Unlearning quantum information [PDF]
The European Physical Journal D, 2014 Quantum dynamics can be driven by measurement. By constructing measurements that gain no information, effective unitary evolution can be induced on a quantum system, for example in ancilla driven quantum computation. In the non-ideal case where a measurement does reveal some information about the system, it may be possible to "unlearn" this information
openaire +4 more sources
Distribution of high-dimensional entanglement via an intra-city free-space link
Nature Communications, 2017 Increasing the dimensionality of entangled states improves robustness and capacity of secure quantum communications, but it requires suitably modified setups.
Fabian Steinlechner +7 more
doaj +1 more source
Information-Theoretic Meaning of Quantum Information Flow and Its Applications to Amplitude Amplification Algorithms [PDF]
, 2019 The advantages of quantum information processing are in many cases obtained as consequences of quantum interactions, especially for computational tasks where two-qubit interactions are essential.
Bae, Joonwoo, Roy, Sudipto Singha
core +1 more source
Quantum information is physical [PDF]
Superlattices and Microstructures, 1998 28 pages, Latex, 2 eps figures, Paper to be published in Superlattices and Microstructures, Special Issue on the Occasion of Rolf Landauer's 70th Birthday. V2: 11 pages, small corrections to Sect.
DiVincenzo, D. P., Loss, D.
openaire +4 more sources
Types of quantum information [PDF]
Physical Review A, 2007 Quantum, in contrast to classical, information theory, allows for different incompatible types (or species) of information which cannot be combined with each other. Distinguishing these incompatible types is useful in understanding the role of the two classical bits in teleportation (or one bit in one-bit teleportation), for discussing decoherence in ...
openaire +3 more sources
Quantum Control and Quantum Information Technology [PDF]
The Scientific World Journal, 2013 Quantum information technology has been recognized as one of the most promising future technologies (e.g., see [1]). The development of quantum control theory is a key task for practical quantum information technology (e.g., see [2–4]. Recent advances in quantum information technologies and robust quantum information processing require the dynamics of ...
Daoyi Dong +3 more
openaire +3 more sources
Negative entropy and information in quantum mechanics [PDF]
, 1997 A framework for a quantum mechanical information theory is introduced that is based entirely on density operators, and gives rise to a unified description of classical correlation and quantum entanglement. Unlike in classical (Shannon) information theory,
A. Ekert +14 more
core +2 more sources