When is quantum averaging importantSolutionQuantum averaging

When is quantum averaging important?

Solution

Quantum averaging is important to mitigate the risk of overconfident estimates of model parameters. It is interesting that quantum based models provide the best buy/sell signals, especially for intraday data.

Parameter estimation is an integral part of physics. Accurate estimates of physical parameters in quantum mechanical models allow for precision quantum control which enables practical goals such as quantum computation and quantum metrology which in turn can provide probes of fundamental physics such as gravity wave detection.

Quantum parameter estimation shares many similarities with its classical counterpart. But there are many subtle and peculiar differences. Even in single parameter estimation, quantum metrology shows that we can obtain advantages from quantum resources such as squeezed states of light and entanglement. With such rich structure, many new subtleties,considerations and generalities can arise, including entirely new approaches to estimation and verification.

At the other end of the parameter spectrum the quantum state of a physical system is our most complete description of it.