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@fgrosshans

Seated for a seminar by Aephraim Steinberg grom @UofT : How to count one photon and get a result of 1000 – and other experiments on quantum measurement

#LTQI

@UofT Aephraim Steinberg’s main question: “Can we ask what a particle was doing before we observed it?”
E.g., a particle can be in one of 3 boxes A, B, C, prepared in superposition A+B. Postselected on a measurement finding it in B+C, what was its probability to be in A?

#LTQI

@UofT Aephraim Steinberg answer below:

0, because of the psot-selection
#LQTI

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Dr Vega

@queenofquanta

Day 2 of quantum advantage workshop at @InHenriPoincare, featuring Ashley Montanaro (@quantumashley), Juan Bermejo-Vega (myself) and Dominik Hangleiter. #LTQI

We kick off with Ashley Montanaro @quantumashley, giving a tutorial about IQP circuits (IQP = Instantaneous Quantum Polynomial time) and potential for demonstrating superior quantum computational performance. #LQTI

Refs:
- Shepherd, Bremner 0809.0847;
- Bremner, Jozsa, Shepherd 1005.1407;
- Bremner, Montanaro, Shepherd 1504:0799;
- Bremner, Montanaro, Shepherd 1610:01808;

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