Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mark J. Hadley"'
Autor:
Mark J Hadley
Publikováno v:
International Journal of Theoretical Physics. 56:2007-2018
On spacetimes that are not time orientable we construct a U(1) bundle to measure the twisting of the time axis. This single assumption, and simple construction, gives rise to Maxwell's equations of electromagnetism, the Lorentz force law and the Eins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aff3b35c3d778f7f0bda012031d738a
https://doi.org/10.1007/s10773-017-3344-4
https://doi.org/10.1007/s10773-017-3344-4
Publikováno v:
GECCO
We propose an algorithm that optimises input profiles for use in software testing.The algorithm uses a representation based on stochastic context-free grammars.We evaluate the algorithm on software with complex input domains.The efficiency is improve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95e351112f24ba0c0bb2745461860483
https://doi.org/10.1016/j.jss.2014.11.042
https://doi.org/10.1016/j.jss.2014.11.042
Autor:
Mark J Hadley
Publikováno v:
Classical and Quantum Gravity. 19:4565-4571
Contrary to established beliefs, spacetime may not be time-orientable. By considering an experimental test of time orientability it is shown that a failure of time-orientability of a spacetime region would be indistinguishable from a particle antipar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::057132f8281c393094295d3b53e385d5
https://doi.org/10.1088/0264-9381/19/17/308
https://doi.org/10.1088/0264-9381/19/17/308
Autor:
Mark J Hadley
Publikováno v:
Classical and Quantum Gravity. 17:4187-4194
It is shown that models of elementary particles in classical general relativity (geons) will naturally have the transformation properties of a spinor if the spacetime manifold is not time orientable. From a purely pragmatic interpretation of quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::035159c2f84933cb9c28e2bd3956534c
https://doi.org/10.1088/0264-9381/17/20/303
https://doi.org/10.1088/0264-9381/17/20/303
Autor:
Mark J Hadley
Publikováno v:
International Journal of Theoretical Physics. 38:1481-1492
The nonclassical features of quantum mechanicsare reproduced using models constructed with a classicaltheory — general relativity. The inability todefine complete initial data consistently andindependently of future measurements, nonlocality, and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32076df41a5982a0c0e4750ac9b8b792
https://doi.org/10.1023/a:1026697201033
https://doi.org/10.1023/a:1026697201033
Autor:
Mark J Hadley
All experimental evidence for violation of discrete spacetime symmetries: Parity and Time reversal and the related Charge conjugation/Parity combination (P, T and CP respectively) has been obtained on earth in a gravitational potential that is P and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04e4e29af5329ac890723d6894b060a0
Autor:
Mark J Hadley
Publikováno v:
AIP Conference Proceedings.
Spacetime manifolds that are not time orientable play a key role in a gravitational explanation of quantum theory. Such manifolds allow topology change, but also have fascinating additional properties such as net charge from source-free equations and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9f10300bd043a2c48fb85cc8b90ed3b
https://doi.org/10.1063/1.2737003
https://doi.org/10.1063/1.2737003
Autor:
Mark J Hadley
There is a deep structural link between acausal spacetimes and quantum theory. As a consequence quantum theory may resolve some "paradoxes" of time travel. Conversely, non-time-orientable spacetimes naturally give rise to electric charges and spin ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b5ec3aad20012e5effa1037952d01ff
Autor:
Tammo Diemer, Mark J Hadley
A new class of electrically charged wormholes is described in which the outer two sphere is not spanned by a compact coorientable hypersurface. These wormholes can therefore display net electric charge from the source free Maxwell's equation. This ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90b69048759d8cfbb7876518a5c9866d
http://arxiv.org/abs/gr-qc/9905069
http://arxiv.org/abs/gr-qc/9905069
Autor:
Mark J Hadley
For the first time it is shown that the logic of quantum mechanics can be derived from Classical Physics. An orthomodular lattice of propositions, characteristic of quantum logic, is constructed for manifolds in Einstein's theory of general relativit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b52dd50ff9aa558a6f4b45d02eb981
http://wrap.warwick.ac.uk/62982/1/WRAP_Hadley_9706018v1.pdf
http://wrap.warwick.ac.uk/62982/1/WRAP_Hadley_9706018v1.pdf