Internet Archive Scholar

Quasiparticles, coherence, and nonlinearity: Exact simulations of rf spectroscopy of strongly interacting one-dimensional Fermi gases

M. J. Leskinen, V. Apaja, J. Kajala, P. Törmä
2008 Physical Review A. Atomic, Molecular, and Optical Physics  

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (360.8 kB)
https://web.archive.org/web/20200319170842/https://research.aalto.fi/files/2477565/PhysRevA.78.pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL. The file type is application/pdf.

Other Versions

2008 pre-print
arXiv:0802.1882v2 fatcat:2o7r6stv5vfyxhwtlvthy3gafy
2008 accepted
arXiv:0802.1882v5 fatcat:s762kl2mrrbstjs5c34bnvjsce
2008 pre-print
arXiv:0802.1882v3 fatcat:z4zksxdyynfgla2q36m7czep4u
2008 pre-print
arXiv:0802.1882v4 fatcat:x6lq55rjwnhmdntu3nn6ilfh2u
2008 pre-print
arXiv:0802.1882v1 fatcat:ljtkt55e6jc73pyhm4z3ntjivq
We consider RF-spectroscopy of ultracold Fermi gases by exact simulations of the many-body state and the coherent dynamics in one dimension. Deviations from the linear response sum rule result are found to suppress the pairing contribution to the RF line shifts. We compare the coherent rotation and quasiparticle descriptions of RF-spectroscopy which are analogous to NMR experiments in superfluid ^3He and tunneling in solids, respectively. We suggest that RF-spectroscopy in ultracold gases
more » ... es an interesting crossover between these descriptions that could be used for studying decoherence in quantum measurement, in the context of many-body quantum states.
doi:10.1103/physreva.78.023602 fatcat:6zgls37r65exbg32zqwuygljvy
Multiple Versions
Citation

M. J. Leskinen, V. Apaja, J. Kajala, P. Törmä. "Quasiparticles, coherence, and nonlinearity: Exact simulations of rf spectroscopy of strongly interacting one-dimensional Fermi gases." Physical Review A. Atomic, Molecular, and Optical Physics 78.2 (2008)