SE-QPE modifies canonical QPE by using CSWAP interference to remove controlled-simulation overhead while preserving phase outcomes for particle-conserving Hamiltonians with shared eigenbases, yielding resource reductions and a hardware demonstration on ethylene.
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Split-Evolution Quantum Phase Estimation for Particle-Conserving Hamiltonians
SE-QPE modifies canonical QPE by using CSWAP interference to remove controlled-simulation overhead while preserving phase outcomes for particle-conserving Hamiltonians with shared eigenbases, yielding resource reductions and a hardware demonstration on ethylene.