Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jonathan M. Fellows"'
Autor:
Georgina M. Klemencic, Jonathan M. Fellows, Scott Manifold, M. Salman, Soumen Mandal, Sean Giblin, C. M. Muirhead, Oliver A. Williams, Robert A. Smith, D. T. S. Perkins
Publikováno v:
Carbon. 175:43-49
A phase slip is a localized disturbance in the coherence of a superconductor allowing an abrupt 2$\pi$ phase shift. Phase slips are a ubiquitous feature of one-dimensional superconductors and also have an analogue in two-dimensions. Here we present e
We perform a detailed calculation of the various contributions to the fluctuation conductivity of a granular metal close to its superconducting transition. We find three distinct regions of power law behavior in reduced temperature, $\ensuremath{\eta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::559770ea650177e77f521885e07d15a7
Autor:
Jonathan M. Fellows, Sean Giblin, J. M. Werrell, Oliver A. Williams, Robert A. Smith, Soumen Mandal, Georgina M. Klemencic
We present resistance versus temperature data for a series of boron-doped nanocrystalline diamond films whose grain size is varied by changing the film thickness. Upon extracting the fluctuation conductivity near to the critical temperature we observ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5edaae7a25690d26b176616c5062b82
https://orca.cardiff.ac.uk/id/eprint/104466/1/FS_GranularDiamond_PRM.pdf
https://orca.cardiff.ac.uk/id/eprint/104466/1/FS_GranularDiamond_PRM.pdf
Autor:
Giuseppe Gigli, Bruno Piccirillo, Francesca Maria Marchetti, Galbadrakh Dagvadorj, Lorenzo Marrucci, Daniele Sanvitto, Alberto Bramati, Lorenzo Dominici, Jonathan M. Fellows, Marzena H. Szymańska, Dario Ballarini, Milena De Giorgi
Publikováno v:
Science Advances
Two-dimensional fluid of polaritons sheds light on quantum vortex dynamics.
Vortices are archetypal objects that recur in the universe across the scale of complexity, from subatomic particles to galaxies and black holes. Their appearance is conn
Vortices are archetypal objects that recur in the universe across the scale of complexity, from subatomic particles to galaxies and black holes. Their appearance is conn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5e27b8194def558709a58a6f686d9b8
http://hdl.handle.net/11588/613711
http://hdl.handle.net/11588/613711
Publikováno v:
Proceedings of the International Conference on Strongly Correlated Electron Systems (SCES2013).
We discuss the d=2 quantum O(2)xO(2) nonlinear sigma model as a low-energy theory of phase reconstruction near a quantum critical point. We first examine the evolution of the Berezinskii-Kosterlitz-Thouless (BKT) transition as the quantum limit is ap
Publikováno v:
PLoS ONE, Vol 11, Iss 9, p e0162441 (2016)
PLoS ONE
PLoS ONE
Aims Therapy-related consequences of treatment for type 1 diabetes mellitus (T1DM), such as weight gain and hypoglycaemia, act as a barrier to attaining optimal glycaemic control, indirectly influencing the incidence of vascular complications and ass
Autor:
Jason Gordon, Jonathan M. Fellows, Philip Christopher McEwan, Klas Bergenheim, Lei Qin, Nebibe Varol, R. Yapp, H Bennett
Publikováno v:
Value in Health. 19:A88
Publikováno v:
Physical review letters. 109(15)
We consider a two-dimensional system with two order parameters, one with O(2) symmetry and one with O($M$), near a point in parameter space where they couple to become a single O($2+M$) order. While the O(2) sector supports vortex excitations, these
Autor:
Jonathan M. Fellows, Robert A. Smith
In a previous paper we solved a countably infinite family of one-dimensional Schr\"odinger equations by showing that they were supersymmetric partner potentials of the standard quantum harmonic oscillator. In this work we extend these results to find
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20800abdfed6f6b4845c606949dc36a5
http://arxiv.org/abs/1104.1589
http://arxiv.org/abs/1104.1589
Autor:
Robert A. Smith, Jonathan M. Fellows
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 42:335303
In a recent paper, Carinena J F, Perelomov A M, Ranada M F and Santander M (2008 J. Phys. A: Math. Gen. 41 085301) analyzed a non-polynomial one-dimensional quantum potential representing an oscillator which they argued was intermediate between the h