Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Payne, M C"'
This paper investigates the coupling properties between surface waves on parallel wires. Finite Element Method (FEM) based and analytical models are developed for both single wire Sommerfeld and Goubau lines. Starting with the Sommerfeld type wave, w
Externí odkaz:
http://arxiv.org/abs/2002.10237
Publikováno v:
Physical Review B, VOLUME 63, p. 205109 (2001)
We present a detailed study of the use of localized spherical-wave basis sets, first introduced in the context of linear-scaling, in first-principles density-functional calculations. Several parameters that control the completeness of this basis set
Externí odkaz:
http://arxiv.org/abs/1807.04926
Publikováno v:
Phys. Rev. B 83, 195102 (2011)
Linear scaling methods for density-functional theory (DFT) simulations are formulated in terms of localised orbitals in real-space, rather than the delocalised eigenstates of conventional approaches. In local-orbital methods, relative to conventional
Externí odkaz:
http://arxiv.org/abs/1103.5869
Autor:
Ahnert, S. E., Payne, M. C.
Publikováno v:
Phys. Rev. A 73, 022333 (2006)
Here we propose an implementation of all possible Positive Operator Value Measures (POVMs) of two-photon polarization states. POVMs are the most general class of quantum measurements. Our setup requires linear optics, Bell State measurements and an e
Externí odkaz:
http://arxiv.org/abs/quant-ph/0512227
Autor:
Ahnert, S. E., Payne, M. C.
Publikováno v:
Phys. Rev. A 72, 016012 (2005)
The comment by Lundeen et al. contains two criticisms of our proposal. While we agree that the state-preparation procedure could be replaced by a simpler setup as proposed by the authors of the comment, we do not agree with the authors on their secon
Externí odkaz:
http://arxiv.org/abs/quant-ph/0505027
Autor:
Ahnert, S. E., Payne, M. C.
Publikováno v:
Phys. Rev. A 70, 042102 (2004)
We propose an experimental setup for the implementation of weak measurements in the context of the gedankenexperiment known as Hardy's Paradox. As Aharonov et al. showed, these weak values form a language with which the paradox can be resolved. Our a
Externí odkaz:
http://arxiv.org/abs/quant-ph/0408153
Autor:
Ahnert, S. E., Payne, M. C.
Publikováno v:
Phys. Rev. A 71, 012330 (2005)
Positive Operator Value Measures (POVMs) are the most general class of quantum measurements. We propose a setup in which all possible POVMs of a single photon polarization state (corresponding to all possible sets of two-dimensional Kraus operators)
Externí odkaz:
http://arxiv.org/abs/quant-ph/0408011
Autor:
Ahnert, S. E., Payne, M. C.
Publikováno v:
Phys. Rev. A 69, 042103 (2004)
In this paper we propose a setup for the weak measurement of photon arrival time. It is found that the weak values of this arrival time can lie far away from the expectation value, and in principle also in regions forbidden by special relativity. We
Externí odkaz:
http://arxiv.org/abs/quant-ph/0405156
Autor:
Probert, M. I. J., Payne, M. C.
We present a systematic methodology for the accurate calculation of defect structures in supercells which we illustrate with a study of the neutral vacancy in silicon. This is a prototypical defect which has been studied extensively using ab initio m
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301146
Publikováno v:
Physical Review B, 64:115107(4 pages), 2001
A comparison between experimental and theoretical electron Energy Loss Near Edge Structure (ELNES) of B and N K-edges in cubic boron nitride is presented. The electron energy loss spectra of cubic boron nitride particles were measured using a scannin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0101290