Results 31 to 40 of about 374,177 (189)

Experimental optical phase measurement approaching the exact Heisenberg limit

open access: yesNature Communications, 2018
Measurements of an unknown optical phase have not yet been performed with the ultimate precision, i.e. saturating the Heisenberg limit. Here, Daryanoosh et al.
Shakib Daryanoosh   +4 more
doaj   +1 more source

On the equivalence between squeezing and entanglement potential for two-mode Gaussian states

open access: yesScientific Reports, 2023
The maximum amount of entanglement achievable under passive transformations by continuous-variable states is called the entanglement potential. Recent work has demonstrated that the entanglement potential is upper-bounded by a simple function of the ...
Bohan Li   +5 more
doaj   +1 more source

Relativistic Bohmian trajectories of photons via weak measurements

open access: yesNature Communications, 2022
Making Bohmian mechanics fully compatible with special relativity is still an ongoing challenge. Here, the authors make a further step in this direction by providing a way of constructing the relativistic Bohmian-type velocity field of single photons ...
Joshua Foo   +3 more
doaj   +1 more source

Geometric quantum computation [PDF]

open access: yesJournal of Modern Optics, 2000
15 pages, LaTeX, uses cite, eepic, epsfig, graphicx and amsfonts. Accepted by J.
Ekert, A   +6 more
openaire   +4 more sources

Multicore Quantum Computing

open access: yesPhysical Review Applied, 2022
26 pages, 16 ...
Jnane, H   +4 more
openaire   +3 more sources

Coherent control of a donor-molecule electron spin qubit in silicon

open access: yesNature Communications, 2021
Multi-donor molecules in Si provide a promising qubit platform, offering advantages over single donor qubits in terms of performance and fabrication. Here, the authors report a single qubit gate and long coherence times in a P donor molecule qubit in ...
Lukas Fricke   +8 more
doaj   +1 more source

Fermionic quantum computation [PDF]

open access: yes, 2000
We define a model of quantum computation with local fermionic modes (LFMs) -- sites which can be either empty or occupied by a fermion. With the standard correspondence between the Foch space of $m$ LFMs and the Hilbert space of $m$ qubits, simulation of
Abrams   +12 more
core   +2 more sources

Quantum Bayesian computation

open access: yesApplied Stochastic Models in Business and Industry, 2023
AbstractQuantum Bayesian computation is an emerging field that levers the computational gains available from quantum computers. They promise to provide an exponential speed‐up in Bayesian computation. Our article adds to the literature in three ways.
Nick Polson, Vadim Sokolov, Jianeng Xu
openaire   +2 more sources

Quantum Computation

open access: yes, 1997
We describe how physics of computation determines computational complexity. In particular we show how quantum phenomena lead to qualitatively new modes of computation. An ideal quantum computer would allow to face certain tasks out of reach of classical computers, the factorization problem being the most striking example.
Barenco, A, Huelga, S, Ekert, A
openaire   +2 more sources

Ancilla-Driven Universal Blind Quantum Computation

open access: yes, 2013
Blind quantum computation is a new quantum secure protocol, which enables Alice who does not have enough quantum technology to delegate her computation to Bob who has a fully-fledged quantum power without revealing her input, output and algorithm. So far,
Koshiba, Takeshi   +2 more
core   +1 more source

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