Details
| Original language | English |
|---|---|
| Pages (from-to) | 382-388 |
| Number of pages | 7 |
| Journal | Nature physics |
| Volume | 6 |
| Issue number | 5 |
| Publication status | Published - 14 Mar 2010 |
| Externally published | Yes |
Abstract
A universal quantum simulator is a controlled quantum device that reproduces the dynamics of any other many-particle quantum system with short-range interactions. This dynamics can refer to both coherent Hamiltonian and dissipative open-system evolution. Here we propose that laser-excited Rydberg atoms in large-spacing optical or magnetic lattices provide an efficient implementation of a universal quantum simulator for spin models involving n-body interactions, including such of higher order. This would allow the simulation of Hamiltonians of exotic spin models involving n-particle constraints, such as the Kitaev toric code, colour code and lattice gauge theories with spin-liquid phases. In addition, our approach provides the ingredients for dissipative preparation of entangled states based on engineering n-particle reservoir couplings. The basic building blocks of our architecture are efficient and high-fidelity n-qubit entangling gates using auxiliary Rydberg atoms, including a possible dissipative time step through optical pumping. This enables mimicking the time evolution of the system by a sequence of fast, parallel and high-fidelity n-particle coherent and dissipative Rydberg gates.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Nature physics, Vol. 6, No. 5, 14.03.2010, p. 382-388.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A Rydberg quantum simulator
AU - Weimer, Hendrik
AU - Müller, Markus
AU - Lesanovsky, Igor
AU - Zoller, Peter
AU - Büchler, Hans Peter
N1 - Funding information: This work was supported by the Austrian Science Foundation (FWF), and by the Deutsche Forschungsgemeinschaft (DFG) through SFB/TRR 21.
PY - 2010/3/14
Y1 - 2010/3/14
N2 - A universal quantum simulator is a controlled quantum device that reproduces the dynamics of any other many-particle quantum system with short-range interactions. This dynamics can refer to both coherent Hamiltonian and dissipative open-system evolution. Here we propose that laser-excited Rydberg atoms in large-spacing optical or magnetic lattices provide an efficient implementation of a universal quantum simulator for spin models involving n-body interactions, including such of higher order. This would allow the simulation of Hamiltonians of exotic spin models involving n-particle constraints, such as the Kitaev toric code, colour code and lattice gauge theories with spin-liquid phases. In addition, our approach provides the ingredients for dissipative preparation of entangled states based on engineering n-particle reservoir couplings. The basic building blocks of our architecture are efficient and high-fidelity n-qubit entangling gates using auxiliary Rydberg atoms, including a possible dissipative time step through optical pumping. This enables mimicking the time evolution of the system by a sequence of fast, parallel and high-fidelity n-particle coherent and dissipative Rydberg gates.
AB - A universal quantum simulator is a controlled quantum device that reproduces the dynamics of any other many-particle quantum system with short-range interactions. This dynamics can refer to both coherent Hamiltonian and dissipative open-system evolution. Here we propose that laser-excited Rydberg atoms in large-spacing optical or magnetic lattices provide an efficient implementation of a universal quantum simulator for spin models involving n-body interactions, including such of higher order. This would allow the simulation of Hamiltonians of exotic spin models involving n-particle constraints, such as the Kitaev toric code, colour code and lattice gauge theories with spin-liquid phases. In addition, our approach provides the ingredients for dissipative preparation of entangled states based on engineering n-particle reservoir couplings. The basic building blocks of our architecture are efficient and high-fidelity n-qubit entangling gates using auxiliary Rydberg atoms, including a possible dissipative time step through optical pumping. This enables mimicking the time evolution of the system by a sequence of fast, parallel and high-fidelity n-particle coherent and dissipative Rydberg gates.
UR - http://www.scopus.com/inward/record.url?scp=77952009159&partnerID=8YFLogxK
U2 - 10.1038/nphys1614
DO - 10.1038/nphys1614
M3 - Article
AN - SCOPUS:77952009159
VL - 6
SP - 382
EP - 388
JO - Nature physics
JF - Nature physics
SN - 1745-2473
IS - 5
ER -