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Spatiotemporal spread of fermi-edge singularity as time delayed interaction and impact on time-dependent RKKY type coupling
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dc.contributor.author | Jackson, Conor | |
dc.contributor.author | Braunecker, Bernd | |
dc.date.accessioned | 2022-02-24T17:30:09Z | |
dc.date.available | 2022-02-24T17:30:09Z | |
dc.date.issued | 2022-02-14 | |
dc.identifier | 278039250 | |
dc.identifier | 7c4079cd-d5ff-4e86-b263-9c41b9a95fab | |
dc.identifier | 85125631310 | |
dc.identifier | 000795711900003 | |
dc.identifier.citation | Jackson , C & Braunecker , B 2022 , ' Spatiotemporal spread of fermi-edge singularity as time delayed interaction and impact on time-dependent RKKY type coupling ' , Physical Review Research , vol. 4 , no. 1 , 013119 . https://doi.org/10.1103/PhysRevResearch.4.013119 | en |
dc.identifier.issn | 2643-1564 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2106.09059v2 | |
dc.identifier.other | ORCID: /0000-0002-7077-8825/work/108917121 | |
dc.identifier.uri | https://hdl.handle.net/10023/24954 | |
dc.description | Funding: C.J. acknowledges the support from the EPSRC under Grant No. EP/L015110/1. | en |
dc.description.abstract | Fermi-edge singularity and Anderson's orthogonality catastrophe are paradigmatic examples of non-equilibrium many-body physics in conductors, appearing after a quench is created by the sudden change of a localised potential. We investigate if the signal carried by the quench can be used to transmit a long ranged interaction, reminiscent of the RKKY interaction, but with the inclusion of the full many-body propagation over space and time. We calculate the response of a conductor to two quenches induced by localised states at different times and locations. We show that building up and maintaining coherence between the localised states is possible only with finely tuned interaction between the localised states and the conductor. This puts bounds to the use of time controlled RKKY type interactions and may limit the speed at which some quantum gates could operate. | |
dc.format.extent | 12 | |
dc.format.extent | 484327 | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Review Research | en |
dc.subject | QC Physics | en |
dc.subject | TK Electrical engineering. Electronics Nuclear engineering | en |
dc.subject | T-DAS | en |
dc.subject | MCC | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | TK | en |
dc.title | Spatiotemporal spread of fermi-edge singularity as time delayed interaction and impact on time-dependent RKKY type coupling | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. Centre for Designer Quantum Materials | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevResearch.4.013119 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | EP/L015110/1 | en |
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