Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session J08: NISQ: Quantum Chemistry and Quantum Simulation II
2:30 PM–5:30 PM,
Tuesday, March 3, 2020
Sponsoring Unit: DQI
Chair: Abhinav Kandala, IBM TJ Watson Research Center
Abstract: J08.00013 : Quantum Digital Cooling*
The LogSweep protocol extends the weak-coupling approach by sweeping energies to resonantly match any targeted transition, demonstrating preparation of an approximate ground state for ferromagnetic and critical Ising chain, with error that can be made polinomially small in time.
The BangBang protocol extends the strong-coupling approach, and exploits a heuristics for local Hamiltonians to approximately match transition energies, allowing rapid cooling to an approximation of the ground state, which makes this protocol appealing for near-term simulation applications.
*This research was funded by the Netherlands Organization for Scientific Research (NWO/OCW) under the NanoFront and StartImpuls programs, and by Shell Global Solutions BV.
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