Citation

BibTex format

@article{Gielen:2023:0295-5075/acbc48,
author = {Gielen, S and Magueijo, J},
doi = {0295-5075/acbc48},
journal = {EPL},
title = {Quantum resolution of the cosmological singularity without new physics},
url = {http://dx.doi.org/10.1209/0295-5075/acbc48},
volume = {141},
year = {2023}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We study a quantum Hot Big Bang in the connection representation, with a matter constant of motion m whose conjugate defines time. Superpositions in m induce a unitary inner product. The wave function reveals a resolution of the singularity problem without new physics or supplementary boundary conditions. Backtracking in time, the probability peak eventually halts at a maximum curvature, its height dropping thereafter while a symmetric contracting peak rises. The Big Bang is replaced by a superposition of contracting and expanding regular Universes. We contrast these findings with the situation in the metric representation, where boundary conditions at the singularity are needed for unitary evolution.
AU  - Gielen,S
AU  - Magueijo,J
DO  - 0295-5075/acbc48
PY  - 2023///
SN  - 0302-072X
TI  - Quantum resolution of the cosmological singularity without new physics
T2  - EPL
UR  - http://dx.doi.org/10.1209/0295-5075/acbc48
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000944324900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
UR  - https://iopscience.iop.org/article/10.1209/0295-5075/acbc48
UR  - http://hdl.handle.net/10044/1/106951
VL  - 141
ER  -
Download

Note to staff:  Adding new publications to a research group

  1. Log in to Symplectic.
  2. Click on Menu > Create Links
  3. Choose what you want to create links between – in this case ‘Publications’ and ‘Organisational structures’.
  4. Choose the organisational structure (research group) into which you want to link the publications and check the box next to it.
  5. Now check the box of any publication you want to add to that group. You can use the filters to find what you want and select multiple publications if necessary. 
  6. Scroll to the bottom and click the blue ‘Create new link’ button to link them.
  7. The publications will be added to the group, and will be displayed on the group publications feed within 24 hours (it is not immediate).

Any problems, talk to Tim Evans or the Faculty Web Team.