Details
| Original language | English |
|---|---|
| Article number | 052120 |
| Journal | Physical Review A |
| Volume | 94 |
| Issue number | 5 |
| Publication status | Published - 17 Nov 2016 |
Abstract
Light-matter interfaces enable the generation of entangled states of light and matter which can be exploited to steer the quantum state of matter through measurement of light and feedback. Here we consider continuous-time, interferometric homodyne measurements of light on an array of light-matter interfaces followed by local feedback acting on each material system individually. While the systems are physically noninteracting, the feedback master equation we derive describes driven-dissipative, interacting many-body quantum dynamics, and comprises pairwise Hamiltonian interactions and collective jump operators. We characterize the general class of driven-dissipative many-body systems which can be engineered in this way, and derive necessary conditions on models supporting nontrivial quantum dynamics beyond what can be generated by local operations and classical communication. We provide specific examples of models which allow for the creation of stationary many-particle entanglement, and the emulation of dissipative Ising models. Since the interaction between the systems is mediated via feedback only, there is no intrinsic limit on the range or geometry of the interaction, making the scheme quite versatile.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A, Vol. 94, No. 5, 052120, 17.11.2016.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Open-system many-body dynamics through interferometric measurements and feedback
AU - Lammers, Jonas
AU - Weimer, Hendrik
AU - Hammerer, Klemens
N1 - Funding information: We thank Sebastian Hofer for discussions. We acknowledge support from DFG through SFB 1227 (DQ-mat), from the European Commission through FET-Open Project iQUOEMS, and from the Volkswagen Foundation.
PY - 2016/11/17
Y1 - 2016/11/17
N2 - Light-matter interfaces enable the generation of entangled states of light and matter which can be exploited to steer the quantum state of matter through measurement of light and feedback. Here we consider continuous-time, interferometric homodyne measurements of light on an array of light-matter interfaces followed by local feedback acting on each material system individually. While the systems are physically noninteracting, the feedback master equation we derive describes driven-dissipative, interacting many-body quantum dynamics, and comprises pairwise Hamiltonian interactions and collective jump operators. We characterize the general class of driven-dissipative many-body systems which can be engineered in this way, and derive necessary conditions on models supporting nontrivial quantum dynamics beyond what can be generated by local operations and classical communication. We provide specific examples of models which allow for the creation of stationary many-particle entanglement, and the emulation of dissipative Ising models. Since the interaction between the systems is mediated via feedback only, there is no intrinsic limit on the range or geometry of the interaction, making the scheme quite versatile.
AB - Light-matter interfaces enable the generation of entangled states of light and matter which can be exploited to steer the quantum state of matter through measurement of light and feedback. Here we consider continuous-time, interferometric homodyne measurements of light on an array of light-matter interfaces followed by local feedback acting on each material system individually. While the systems are physically noninteracting, the feedback master equation we derive describes driven-dissipative, interacting many-body quantum dynamics, and comprises pairwise Hamiltonian interactions and collective jump operators. We characterize the general class of driven-dissipative many-body systems which can be engineered in this way, and derive necessary conditions on models supporting nontrivial quantum dynamics beyond what can be generated by local operations and classical communication. We provide specific examples of models which allow for the creation of stationary many-particle entanglement, and the emulation of dissipative Ising models. Since the interaction between the systems is mediated via feedback only, there is no intrinsic limit on the range or geometry of the interaction, making the scheme quite versatile.
UR - http://www.scopus.com/inward/record.url?scp=84996921149&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.94.052120
DO - 10.1103/PhysRevA.94.052120
M3 - Article
AN - SCOPUS:84996921149
VL - 94
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 5
M1 - 052120
ER -