JQI-QuICS-CMTC Seminar

Date
Fri, Mar 22, 2019 12:00 pm - 12:40 pm
Location
PSC 2136

Description


Title: Validating and Certifying Stabilizer States

Speaker: Amir Kalev, QuICS

Abstract: I will discuss a measurement scheme that validates the preparation of n-qubit stabilizer states. The scheme involves a measurement of n Pauli observables, a priori determined from the stabilizer state and which can be realized using single-qubit gates. Based on the proposed validation scheme, we derive an explicit expression for the worse-case fidelity, i.e., the minimum fidelity between the stabilizer state and any other state consistent with the measured data. We also show that the worse-case fidelity can be certified, with high probability, using O(n^2) copies of the state.
Notes: Lunch served at 12:00 pm, talk at 12:10 pm.

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