Zobrazeno 1 - 10
of 27
pro vyhledávání: '"P C E Stamp"'
Autor:
Zhu, P. C. E. Stamp Zhen
We solve for the decoherence dynamics of two models in which a simple qubit or Central Spin couples to a bath of spins; the bath is made from a chain of spins. In model 1, the bath spins are Ising spins; in Model 2, they are coupled by transverse spi
Externí odkaz:
http://arxiv.org/abs/2405.03795
Autor:
P C E Stamp
Publikováno v:
New Journal of Physics, Vol 17, Iss 6, p 065017 (2015)
It is argued that gravity should cause a breakdown of quantum mechanics, at low energies, accessible to table-top experiments. It is then shown that one can formulate a theory of quantum gravity in which gravitational correlations exist between world
Externí odkaz:
https://doaj.org/article/cd44a3d86efd4c46b162369050a417c7
Autor:
Jordan Wilson-Gerow, P. C. E. Stamp
Publikováno v:
Physical Review D. 105
Starting from a formulation of Correlated Worldline (CWL) theory in terms of functional integrals over paths, we define propagators for particles and matter fields in this theory. We show that the most natural formulation of CWL theory involves a res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8e329a43d9c0e066ac77d50410ee958
https://doi.org/10.1103/physrevd.105.084015
https://doi.org/10.1103/physrevd.105.084015
Autor:
T. Cox, P. C. E. Stamp
Publikováno v:
Physical Review A. 98
The density matrix of a non-relativistic quantum system, divided into $N$ sub-systems, is rewritten in terms of the set of all partitioned density matrices for the system. For the case where the different sub-systems are distinguishable, we derive a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8b44aeace7d0671b86c163a46c07a4e
https://doi.org/10.1103/physreva.98.062110
https://doi.org/10.1103/physreva.98.062110
Autor:
P. C. E. Stamp
Publikováno v:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 370:4429-4453
We review the difference between standard environmental decoherence and 'intrinsic decoherence', which is taken to be an ineluctable process of Nature. Environmental decoherence is typically modeled by spin bath or oscillator modes - we review some o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d460a85ae9a3f617b88ddab1700e0cce
https://doi.org/10.1098/rsta.2012.0162
https://doi.org/10.1098/rsta.2012.0162
Autor:
P. C. E. Stamp
Publikováno v:
Europhysics Letters (EPL). 14:569-574
It is shown how quasi-particle quantum numbers may be defined and calculated for interacting Fermi systems in 2 and 3 dimensions. Exact results are given for charged and neutral Fermi systems, both normal and superfluid, in 3 dimensions, and for Cher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a86ca214cc52471a793815c2ede4462f
https://doi.org/10.1209/0295-5075/14/6/012
https://doi.org/10.1209/0295-5075/14/6/012
Autor:
L. R. Thompson, P. C. E. Stamp
Publikováno v:
NATO Science for Peace and Security Series B: Physics and Biophysics ISBN: 9781402085116
In classical hydrodynamics, a Magnus force exists between a vortex and the hosting fluid acting transverse to their relative motion. There is a quantum Magnus force acting on vortices in superfluids and superconductors and an analogous force acting o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efd5e6b49f3eceefacbcd96acfc90273
https://doi.org/10.1007/978-1-4020-8512-3_13
https://doi.org/10.1007/978-1-4020-8512-3_13
Autor:
M. Schechter, P. C. E. Stamp
Publikováno v:
Physical Review Letters. 96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e73255faaf17c59985196f4dcf7b26c1
https://doi.org/10.1103/physrevlett.96.039903
https://doi.org/10.1103/physrevlett.96.039903
Autor:
M, Schechter, P C E, Stamp
Publikováno v:
Physical review letters. 95(26)
We consider the quantum magnet at LiHo(x)Y(1-x)F(4) at x = 0.167. Experimentally the spin glass to paramagnet transition in this system was studied as a function of the transverse magnetic field and temperature, showing peculiar features: for example
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0d3e4bf6f96216fc69597b52e2ce3942
https://pubmed.ncbi.nlm.nih.gov/16486398
https://pubmed.ncbi.nlm.nih.gov/16486398
Autor:
Nikolai Prokof'ev, P. C. E. Stamp
Publikováno v:
Physical review letters. 84(24)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66a86f29b4fc96ecdfe86194b1a3ebfa
https://pubmed.ncbi.nlm.nih.gov/10991027
https://pubmed.ncbi.nlm.nih.gov/10991027