Programmable Quantum Simulation of Molecular Vibrational Spectra using Boson Sampling in Circuit QED
‘Circuit QED’ is the quantum theory of superconducting qubits strongly interacting with microwave photons in electrical circuits. It is the leading solid-state architecture in the race to develop large-scale fault-tolerant quantum computers, and is the only technology that has demonstrated quantum error correction that actually extends the lifetime of quantum information.
In this talk, I will present an elementary introduction to the basic concepts underlying superconducting quantum processors. Their ability to control and make quantum non-demolition (QND) measurements of individual microwave photons is a powerful resource for quantum computation, communication and simulation. I will illustrate these capabilities with recent experiments on a programmable quantum simulator that uses efficient boson sampling of microwave photons to predict the Franck-Condon vibrational spectra of various small tri-atomic molecules. Finally, I will briefly explore possible future directions for simulation of quantum many-body problems involving interacting bosons.
The talk will be based on this journal article: ‘Efficient Multiphoton Sampling of Molecular Vibronic Spectra on a Superconducting Bosonic Processor,’ Christopher S. Wang et al., Phys. Rev. X10, 021060 (2020).
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