Simulating spectroscopy experiments with a superconducting quantum computer
John P. T. Stenger, Gilad Ben-Shach, David Pekker, Nicholas T. Bronn
DOI 10.1103/PhysRevResearch.4.043106 · Physical Review Research
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Abstract
We present a method for solving eigenvalue problems on a quantum computer based on spectroscopy. The method works by coupling a “probe” qubit to a set of system simulation qubits and then time evolving both the probe and the system under Hamiltonian dynamics. In this way, we simulate spectroscopy on a quantum computer. We test our method on the IBM quantum hardware for a simple single-spin model and an interacting Kitaev chain model. For the Kitaev chain, we trace out the pseudotopological phase boundary for a two-site model.
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