Quantum 5, 483 (2021). https://doi.org/10.22331/q-2021-06-29-483 Singular value decomposition is central to many problems in engineering and scientific fields. Several quantum algorithms have been proposed to determine the singular values and their associated singular vectors of […]
Quantum 5, 482 (2021). https://doi.org/10.22331/q-2021-06-24-482 The new bound on quantum speed limit (in terms of relative purity) is derived by applying the original Mandelstam-Tamm one to the evolution in the space of Hilbert-Schmidt operators acting […]
Quantum 5, 481 (2021). https://doi.org/10.22331/q-2021-06-24-481 Inspired by recent progress in quantum algorithms for ordinary and partial differential equations, we study quantum algorithms for stochastic differential equations (SDEs). Firstly we provide a quantum algorithm that gives […]
Quantum 5, 480 (2021). https://doi.org/10.22331/q-2021-06-24-480 Quantum resource theory under different classes of quantum operations advances multiperspective understandings of inherent quantum-mechanical properties, such as quantum coherence and quantum entanglement. We establish hierarchies of different operations for […]
Increasingly, civilization’s information is stored digitally, and that storage is abundant and growing. We don’t bother deleting those seven high-definition videos of the ceiling or 20 blurry photos of a table corner taken by our […]
Quantum 5, 479 (2021). https://doi.org/10.22331/q-2021-06-17-479 There is an increasing interest in quantum algorithms for problems of integer programming and combinatorial optimization. Classical solvers for such problems employ relaxations, which replace binary variables with continuous ones, […]
Quantum 5, 478 (2021). https://doi.org/10.22331/q-2021-06-17-478 Quantum entanglement is a form of correlation between quantum particles that cannot be increased via local operations and classical communication. It has therefore been proposed that an increment of quantum […]
Quantum 5, 477 (2021). https://doi.org/10.22331/q-2021-06-17-477 In this paper, we introduce optimal versions of a multi-port based teleportation scheme allowing to send a large amount of quantum information. We fully characterise probabilistic and deterministic case by […]
Quantum 5, 476 (2021). https://doi.org/10.22331/q-2021-06-15-476 One of the basic distinctions between classical and quantum mechanics is the existence of fundamentally incompatible quantities. Such quantities are present on all levels of quantum objects: states, measurements, quantum […]
Quantum 5, 475 (2021). https://doi.org/10.22331/q-2021-06-15-475 A Physical Unclonable Function (PUF) is a device with unique behaviour that is hard to clone hence providing a secure fingerprint. A variety of PUF structures and PUF-based applications have […]
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