Eliot Kapit’s group researches important theoretical issues in quantum information science and many-body physics, with a strong focus on real-world, near-term problems relevant to modern quantum hardware. Major research themes include, but are far from limited to:
- Passive quantum error correction: engineering superconducting quantum devices which are capable of autonomously correcting or suppressing common error processes, greatly extending the lifetime of encoded information. A particularly promising device proposal in this vein, called the Very Small Logical Qubit (E. Kapit, PRL 2016), is being fabricated and tested by David Schuster’s group at U. Chicago, in collaboration with Prof. Kapit and his students. Other research topics include hybrid error correction schemes which include active and passive elements, novel measurement schemes, and passive phase error correction. This work is currently supported by the National Science Foundation and Army Research Office.
- Unconventional methods for quantum optimization and annealing: quantum annealing is one of the most promising near-term applications of quantum hardware to real-world problems, since it is capable of success even in the presence of environmental noise. However, proof of a quantum speedup in these systems remains largely elusive. Prof. Kapit and his students are studying a variety of methods to potentially accelerate problem solving in these systems, which could easily be tested in real flux-qubit based hardware. This work is currently supported by the National Science Foundation.
- Analog quantum simulation, entanglement and complexity: Prof. Kapit and collaborators also study a variety of interesting issues in analog quantum simulation, the use of one tunable quantum system (in this case, microwave photons trapped in superconducting qubits) to mimic the behavior of another. He is particularly interested in entanglement generation, stabilization of complex states using engineered noise, fractional quantum Hall physics, and the effect of localization on quantum dynamics. Projects in this area are supported by the National Science Foundation, and by Google.
We have an opening for one graduate student to join the group starting fall 2019, and usually have openings for one or more summer undergraduate students, particularly from within Mines. If you are interested, don’t hesitate to contact Professor Kapit with questions.