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Probing many-body dynamics on a 51-atom quantum simulator
Hannes Bernien1, Sylvain Schwartz1,2, Alexander Keesling1
1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA.
Nature
|December 1, 2017
Summary
Researchers created controllable quantum matter using cold atoms and Rydberg interactions, realizing a programmable quantum spin model. This system exhibits phase transitions and robust dynamics, paving the way for quantum simulations and algorithms.
Area of Science:
- Quantum physics
- Quantum simulation
- Condensed matter physics
Background:
- Controllable quantum systems are crucial for understanding quantum matter.
- Quantum simulators offer a path to new quantum phases and computational advantages.
Purpose of the Study:
- To demonstrate a method for creating controlled many-body quantum matter.
- To realize and study a programmable quantum spin model.
Main Methods:
- Utilizing deterministically prepared, reconfigurable arrays of individually trapped cold atoms.
- Employing excitation to Rydberg states for strong, coherent interactions.
- Implementing a programmable Ising-type quantum spin model up to 51 qubits.
Main Results:
- Observation of phase transitions into spatially ordered states breaking discrete symmetries.
- Verification of high-fidelity preparation of these ordered states.
- Investigation of robust many-body dynamics, including persistent oscillations after quantum quenches.
Conclusions:
- The developed method enables exploration of many-body phenomena on a programmable quantum simulator.
- This approach could facilitate the realization of novel quantum algorithms.
- The system provides insights into fundamental properties of quantum matter.
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