Details
| Original language | English |
|---|---|
| Article number | 213606 |
| Journal | Physical review letters |
| Volume | 123 |
| Issue number | 21 |
| Early online date | 22 Nov 2019 |
| Publication status | Published - Nov 2019 |
Abstract
We investigate the dipole-mediated transport of Rydberg impurities through an ultracold gas of atoms prepared in an auxiliary Rydberg state. In one experiment, we continuously probe the system by coupling the auxiliary Rydberg state to a rapidly decaying state that realizes a dissipative medium. In situ imaging of the impurities reveals diffusive spreading controlled by the intensity of the probe laser. By preparing the same density of hopping partners, but then switching off the dressing fields, the spreading is effectively frozen. This is consistent with numerical simulations, which indicate the coherently evolving system enters a nonergodic extended phase. This opens the way to study transport and localization phenomena in systems with long-range hopping and controllable dissipation.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 123, No. 21, 213606, 11.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Diffusive to Nonergodic Dipolar Transport in a Dissipative Atomic Medium
AU - Whitlock, S.
AU - Wildhagen, H.
AU - Weimer, H.
AU - Weidemüller, M.
PY - 2019/11
Y1 - 2019/11
N2 - We investigate the dipole-mediated transport of Rydberg impurities through an ultracold gas of atoms prepared in an auxiliary Rydberg state. In one experiment, we continuously probe the system by coupling the auxiliary Rydberg state to a rapidly decaying state that realizes a dissipative medium. In situ imaging of the impurities reveals diffusive spreading controlled by the intensity of the probe laser. By preparing the same density of hopping partners, but then switching off the dressing fields, the spreading is effectively frozen. This is consistent with numerical simulations, which indicate the coherently evolving system enters a nonergodic extended phase. This opens the way to study transport and localization phenomena in systems with long-range hopping and controllable dissipation.
AB - We investigate the dipole-mediated transport of Rydberg impurities through an ultracold gas of atoms prepared in an auxiliary Rydberg state. In one experiment, we continuously probe the system by coupling the auxiliary Rydberg state to a rapidly decaying state that realizes a dissipative medium. In situ imaging of the impurities reveals diffusive spreading controlled by the intensity of the probe laser. By preparing the same density of hopping partners, but then switching off the dressing fields, the spreading is effectively frozen. This is consistent with numerical simulations, which indicate the coherently evolving system enters a nonergodic extended phase. This opens the way to study transport and localization phenomena in systems with long-range hopping and controllable dissipation.
UR - http://www.scopus.com/inward/record.url?scp=85075601140&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1809.07532
DO - 10.48550/arXiv.1809.07532
M3 - Article
C2 - 31809153
AN - SCOPUS:85075601140
VL - 123
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 21
M1 - 213606
ER -