Speaker
Description
Squeezing and displacement of a bosonic mode are well-known operations with a wide range of applications in quantum information processing (QIP), from two-qubit gates [1] to precision metrology [2]. Generalized, higher-order spin-dependent squeezing interactions in hybrid spin-oscillator systems have recently come under experimental control [3,4], and represent a novel, rich, and under-explored resource for QIP. Here we discuss one of several applications of these interactions: genuine N-body spin interactions mediated by individually addressed spin-dependent generalized squeezing, which allow for efficient construction of large-scale Toffoli gates and many-body Hamiltonians. We report two strategies to generate N-body gates and their duration in trapped-ions.
[1] R. Srinivas, et al., "High-fidelity laser-free universal control of trapped ion qubits," Nature 597, 209 (2021).
[2] J. Aasi, et al., "Enhanced sensitivity of the LIGO gravitational wave detector by using squeezed states of light," Nat. Photonics 7, 613 (2013).
[3] O. Băzăvan, S. Saner, et al., "Squeezing, trisqueezing, and quadsqueezing in a spin-oscillator system," arXiv:2403.05471 (2024). Accepted to Nat. Phys.
[4] S. Saner, O. Băzăvan, et al., "Generating arbitrary superpositions of nonclassical quantum harmonic oscillator states," arXiv:2409.03482 (2024).
| Academic level | Postdoctoral researcher |
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