Results 61 to 70 of about 11,751,425 (374)
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.
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Strong converse rates for quantum communication [PDF]
, 2015 We revisit a fundamental open problem in quantum information theory, namely whether it is possible to transmit quantum information at a rate exceeding the channel capacity if we allow for a non-vanishing probability of decoding error.
Tomamichel, Marco +2 more
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On quantum backpropagation, information reuse, and cheating measurement collapse [PDF]
Neural Information Processing Systems, 2023 The success of modern deep learning hinges on the ability to train neural networks at scale. Through clever reuse of intermediate information, backpropagation facilitates training through gradient computation at a total cost roughly proportional to ...
Amira Abbas +6 more
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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
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Photonic quantum information processing: a review [PDF]
Reports on progress in physics. Physical Society, 2018 Photonic quantum technologies represent a promising platform for several applications, ranging from long-distance communications to the simulation of complex phenomena. Indeed, the advantages offered by single photons do make them the candidate of choice
Fulvio Flamini +2 more
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Noiseless photonic non-reciprocity via optically-induced magnetization
Nature Communications, 2021 Optical nonreciprocity through magneto-optical effects requires bulky apparatuses and strong magnetic fields, while magnetic-free approaches are difficult to implement. Here, the authors use optically-induced magnetisation in an atomic ensemble to get 50
Xin-Xin Hu +11 more
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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 ...
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Single ion qubit with estimated coherence time exceeding one hour
Nature Communications, 2021 Extending qubit coherence times represent one of the key challenges for quantum technologies. Here, after properly suppressing magnetic-field fluctuations, frequency instability and leakage of the microwave reference-oscillator, the authors infer ...
Pengfei Wang +9 more
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Detecting crosstalk errors in quantum information processors [PDF]
Quantum, 2019 Crosstalk occurs in most quantum computing systems with more than one qubit. It can cause a variety of correlated and nonlocal crosstalk errors that can be especially harmful to fault-tolerant quantum error correction, which generally relies on errors ...
M. Sarovar +5 more
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Quantum Information Processing with Quantum Optics
Annales Henri Poincaré, 2003 We review theoretical proposals for implementation of quantum computing and quantum communication with quantum optical methods.
Cirac, J, Duan, L, Jaksch, D, Zoller, P
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