Results 21 to 30 of about 1,113,819 (290)
Extremely large area (88 mm × 88 mm) superconducting integrated circuit (ELASIC)
Scientific Reports, 2023 Superconducting integrated circuit is a promising “beyond-CMOS” device technology enables speed-of-light, nearly lossless communications to advance cryogenic (4 K or lower) computing.
Rabindra N. Das +11 more
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Quantum advantages for transportation tasks - projectiles, rockets and quantum backflow
npj Quantum Information, 2023 Consider a scenario where a quantum particle is initially prepared in some bounded region of space and left to propagate freely. After some time, we verify if the particle has reached some distant target region.
David Trillo +2 more
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Information-theoretic interpretation of quantum error-correcting codes [PDF]
, 1997 Quantum error-correcting codes are analyzed from an information-theoretic perspective centered on quantum conditional and mutual entropies. This approach parallels the description of classical error correction in Shannon theory, while clarifying the ...
A. Ekert +24 more
core +2 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
Quantum-enhanced radiometry via approximate quantum error correction
Nature Communications, 2022 Exotic quantum states can be advantageous for sensing, but are very fragile, so that some form of quantum error correction is needed. Here, the authors show how approximate QEC helps overcoming decoherence due to noise when measuring the excitation ...
W. Wang +14 more
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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
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, 1994 In usual quantum theory, the information available about a quantum system is defined in terms of the density matrix describing it on a spacelike surface.
C. Caves +36 more
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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
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Quantum Coherence, Coherent Information and Information Gain in Quantum Measurement
, 2019 A measurement is deemed successful, if one can maximize the information gain by the measurement apparatus. Here, we ask if quantum coherence of the system imposes a limitation on the information gain during quantum measurement.
Pati, Arun Kumar +2 more
core +1 more source