Journal
PHYSICAL REVIEW X
Volume 5, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.5.021027
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Funding
- Eidgenossische Technische Hochschule Zurich (ETH Zurich)
- Swiss National Science Foundation National Centre of Competence in Research Quantum Science Technology
- Basque Government [IT472-10]
- Spanish MINECO [FIS2012-36673-C03-02]
- Ramon y Cajal [RYC-2012-11391]
- UPV/EHU Project [EHUA14/04]
- UPV/EHU [UFI 11/55]
- UPV/EHU PhD grant
- PROMISCE European project
- SCALEQIT European project
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Systems of interacting quantum spins show a rich spectrum of quantum phases and display interesting many-body dynamics. Computing characteristics of even small systems on conventional computers poses significant challenges. A quantum simulator has the potential to outperform standard computers in calculating the evolution of complex quantum systems. Here, we perform a digital quantum simulation of the paradigmatic Heisenberg and Ising interacting spin models using a two transmon-qubit circuit quantum electrodynamics setup. We make use of the exchange interaction naturally present in the simulator to construct a digital decomposition of the model-specific evolution and extract its full dynamics. This approach is universal and efficient, employing only resources that are polynomial in the number of spins, and indicates a path towards the controlled simulation of general spin dynamics in superconducting qubit platforms.
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