Spring 2025 MIT-CQE iQuISE Seminar Series.

MIT CUA Room (26-214)

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Quantum Sensing with Solid-State Spins

Choi, Joonhee - Stanford University

Quantum sensing with solid-state spins offers a powerful approach for achieving highly sensitive measurements of magnetic and electric fields, temperature, and pressure, as well as for probing quantum many-body interactions at the nanoscale. This approach leverages the unique properties of atomic-scale defects—such as nitrogen- and tin-vacancy centers in diamonds, rare-earth ions in crystals, and optically addressable spins in two-dimensional materials—to surpass the limitations of classical sen

Thursday, April 3, 2025, noon

A NONLINEAR MECHANICAL OSCILLATOR IN THE QUANTUM REGIME

Fadel, Matteo - ETH Zürich

Mechanical degrees of freedom are natural candidates for continuous-variable quantum information processing and bosonic quantum simulations. These applications, however, require the engineering of squeezing and nonlinearities in the quantum regime. In our work, we demonstrate ground state squeezing of a gigahertz-frequency mechanical resonator coupled to a superconducting qubit. This is achieved by parametrically driving the qubit, which results in an effective two-phonon drive.

Monday, April 7, 2025, noon