Details
| Original language | English |
|---|---|
| Article number | 250601 |
| Journal | Physical review letters |
| Volume | 101 |
| Issue number | 25 |
| Publication status | Published - 15 Dec 2008 |
| Externally published | Yes |
Abstract
We study the appearance of correlated many-body phenomena in an ensemble of atoms driven resonantly into a strongly interacting Rydberg state. The ground state of the Hamiltonian describing the driven system exhibits a second order quantum phase transition. We derive the critical theory for the quantum phase transition and show that it describes the properties of the driven Rydberg system in the saturated regime. We find that the suppression of Rydberg excitations known as blockade phenomena exhibits an algebraic scaling law with a universal exponent.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 101, No. 25, 250601, 15.12.2008.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quantum Critical Behavior in Strongly Interacting Rydberg Gases
AU - Weimer, Hendrik
AU - Löw, Robert
AU - Pfau, Tilman
AU - Büchler, Hans Peter
PY - 2008/12/15
Y1 - 2008/12/15
N2 - We study the appearance of correlated many-body phenomena in an ensemble of atoms driven resonantly into a strongly interacting Rydberg state. The ground state of the Hamiltonian describing the driven system exhibits a second order quantum phase transition. We derive the critical theory for the quantum phase transition and show that it describes the properties of the driven Rydberg system in the saturated regime. We find that the suppression of Rydberg excitations known as blockade phenomena exhibits an algebraic scaling law with a universal exponent.
AB - We study the appearance of correlated many-body phenomena in an ensemble of atoms driven resonantly into a strongly interacting Rydberg state. The ground state of the Hamiltonian describing the driven system exhibits a second order quantum phase transition. We derive the critical theory for the quantum phase transition and show that it describes the properties of the driven Rydberg system in the saturated regime. We find that the suppression of Rydberg excitations known as blockade phenomena exhibits an algebraic scaling law with a universal exponent.
UR - http://www.scopus.com/inward/record.url?scp=57949114251&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.101.250601
DO - 10.1103/PhysRevLett.101.250601
M3 - Article
AN - SCOPUS:57949114251
VL - 101
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 25
M1 - 250601
ER -