Abstract
We study the nonequilibrium dynamics of one-dimensional Mott-insulating bosons in the presence of a tunable effective electric field E which takes the system across a quantum critical point separating a disordered and a translation symmetry broken ordered phase. We provide an exact numerical computation of the residual energy Q, the log fidelity F, the defect density D/L, and the order parameter correlation function for a linear-in-time variation of E with a rate v. We discuss the temporal and spatial variation of these quantities for a range of v and for finite system sizes as relevant to realistic experimental setups. We show that in finite-sized systems Q, F, and D obey Kibble-Zurek scaling, and suggest further experiments within this setup to test our theory.
| Original language | English (US) |
|---|---|
| Article number | 100505 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 85 |
| Issue number | 10 |
| DOIs | |
| State | Published - Mar 16 2012 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
Nonequilibrium dynamics of bosonic Mott insulators in an electric field. / Kolodrubetz, M.; Pekker, D.; Clark, B. K.; Sengupta, K.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 10, 100505, 16.03.2012.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonequilibrium dynamics of bosonic Mott insulators in an electric field
AU - Kolodrubetz, M.
AU - Pekker, D.
AU - Clark, B. K.
AU - Sengupta, K.
PY - 2012/3/16
Y1 - 2012/3/16
N2 - We study the nonequilibrium dynamics of one-dimensional Mott-insulating bosons in the presence of a tunable effective electric field E which takes the system across a quantum critical point separating a disordered and a translation symmetry broken ordered phase. We provide an exact numerical computation of the residual energy Q, the log fidelity F, the defect density D/L, and the order parameter correlation function for a linear-in-time variation of E with a rate v. We discuss the temporal and spatial variation of these quantities for a range of v and for finite system sizes as relevant to realistic experimental setups. We show that in finite-sized systems Q, F, and D obey Kibble-Zurek scaling, and suggest further experiments within this setup to test our theory.
AB - We study the nonequilibrium dynamics of one-dimensional Mott-insulating bosons in the presence of a tunable effective electric field E which takes the system across a quantum critical point separating a disordered and a translation symmetry broken ordered phase. We provide an exact numerical computation of the residual energy Q, the log fidelity F, the defect density D/L, and the order parameter correlation function for a linear-in-time variation of E with a rate v. We discuss the temporal and spatial variation of these quantities for a range of v and for finite system sizes as relevant to realistic experimental setups. We show that in finite-sized systems Q, F, and D obey Kibble-Zurek scaling, and suggest further experiments within this setup to test our theory.
UR - http://www.scopus.com/inward/record.url?scp=84858429126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858429126&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.85.100505
DO - 10.1103/PhysRevB.85.100505
M3 - Article
AN - SCOPUS:84858429126
VL - 85
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 10
M1 - 100505
ER -