Results 11 to 20 of about 4,649,254 (341)
Time complexity and gate complexity [PDF]
Physical Review A, 2010 We formulate and investigate the simplest version of time-optimal quantum computation theory (t-QCT), where the computation time is defined by the physical one and the Hamiltonian contains only one- and two-qubit interactions.
D. J. Tannor +5 more
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Space-Time Complexity in Hamiltonian Dynamics [PDF]
Chaos: An Interdisciplinary Journal of Nonlinear Science, 2003 New notions of the complexity function C(epsilon;t,s) and entropy function S(epsilon;t,s) are introduced to describe systems with nonzero or zero Lyapunov exponents or systems that exhibit strong intermittent behavior with ``flights'', trappings, weak ...
Brudno A. A. +7 more
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The time complexity of self-assembly. [PDF]
Proc Natl Acad Sci U S A, 2022 ABSTRACTTime efficiency of self-assembly is crucial for many biological processes. Moreover, with the advances of nanotechnology, time efficiency in artificial self-assembly becomes ever more important. While structural determinants and the final assembly yield are increasingly well understood, kinetic aspects concerning the time efficiency, however ...
Gartner FM, Graf IR, Frey E.
europepmc +5 more sources
Complex-barrier tunnelling times [PDF]
Journal de Physique I, 1994 In this paper we calculate the analytic expression of the phase time for the scattering of an electron off a complex square barrier. As is well known the (negative) imaginary part of the potential takes into account, phenomenologically, the absorption. We investigate the so-called Hartman-Fletcher effect, and find that it is suppressed by the presence ...
RACITI, Fabio, SALESI G.
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Physical Review D, 2020 For any quantum algorithm given by a path in the space of unitary operators we define the computational complexity as the typical computational time associated with the path. This time is defined using a quantum time estimator associated with the path.
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Complexity Leadership: On Time, On Budget [PDF]
IEEE Engineering Management Review, 2022 A discursive piece aimed at practitioners in Engineering Management. On the subject of Complexity Leadership and KPIs, this short article presents three models which expand on the work of Uhl-Bien and Marion (2007) by focusing on Administrative, Enabling and Adaptive Leaderships for managing complexity.<div><br></div>
Chris Biggadike +2 more
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Almost Optimal Searching of Maximal Subrepetitions in a Word
Mathematics, 2022 For some fixed δ such that ...
Roman Kolpakov
doaj +1 more source
Accurate Estimate of the Advantage of Impossible Differential Attacks
IACR Transactions on Symmetric Cryptology, 2017 Impossible differential attacks, which are taking advantage of differentials that cannot occur, are powerful attacks for block cipher primitives. The power of such attacks is often measured in terms of the advantage — number of key-bits found during the ...
Céline Blondeau
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Detecting Deterministic Chaotic Inter-arrival Times in Material Flow Systems
Proceedings of the Conference on Production Systems and Logistics, 2022 Automated, modular, asynchronous and locally controlled material flow systems promise high routing flexibility in production lines because their conveying modules can be reconfigured without reprogramming PLCs.
Manns, Martin +3 more
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Towards a Unified Framework of Matrix Derivatives
IEEE Access, 2018 The need of processing and analyzing massive statistics simultaneously requires the derivatives of matrix-to-scalar functions (scalar-valued functions of matrices) or matrix-to-matrix functions (matrixvalued functions of matrices).
Jianyu Xu +4 more
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