Quantum resource estimation using a re-parameterization method

A computer-implemented method, comprising:

• applying, by a system operatively coupled to a processor, a quantum fault-tolerant operation to a variationally prepared quantum state corresponding to a probability distribution to produce a quantum state corresponding to a target probability distribution;
• and
• estimating, by the system, at least one defined criterion of a quantum computer to be used to compute an expectation value of a stochastic process associated with the target probability distribution.

A computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a processor to cause the processor to:

• apply a quantum fault-tolerant operation to a variationally prepared quantum state corresponding to a probability distribution to produce a quantum state corresponding to a target probability distribution;
• and
• estimate at least one defined criterion of a quantum computer to be used to compute an expectation value of a stochastic process associated with the target probability distribution.