Why can quantum computing help in Portfolio Optimization?
It depends on algorithm you use for the optimization. In certain cases, you can use HHL algorithm because the optimization is converted to solution of a linear system. In this case we can obtain up to ...
Portfolio optimization via quantum Zeno dynamics in Qiskit
The term that you are looking for is "quantum zeno effect" or "quantum zeno dynamics". As far as I know, there are not quantum zeno effect experiments implemented in Qiskit (yet).
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