Speaker: Or Katz
Affiliation: Duke University
Date: Tuesday, 24 January 2023 at 12:00
Location: Online seminar
Quantum processors have great potential to solve computationally intractable problems, and to deepen our understanding of complex quantum systems. Yet, mapping of an initial spin-state to a general target quantum state, one of the central functions of the processor, often requires the application of numerous high-fidelity entangling operations. As the number of such two-qubit operations scales exponentially with the number of spins, efficient implementations might benefit from techniques that extend beyond the quantum gate model and harness native resources of the physical platform. In the talk, I will present new avenues to realize quantum gates and simulations using trapped-ion systems beyond the quantum gate model. I will describe a single-step protocol to generate native, N-body entangling interactions between trapped-ion spins, using spin-dependent squeezing. Then, I will present our latest quantum simulations using simultaneous and reconfigurable spin-spin interactions, enabling the emergence and preparation of exotic phases of matter. Finally, I will outline an avenue to program a dense graph of couplings between the long-lived phonon modes in trapped-ion crystals, paving the path to programmable quantum simulations of bosonic and spin-boson systems on currently available devices.