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Description
The rodeo algorithm is a new method for preparing quantum eigenstates on a quantum computer. It follows a strategy that is opposite to adiabatic evolution. Instead of slowly evolving a Hamiltonian to preserve the instantaneous ground state, it violently shakes off all quantum states that are not desired. I discuss the theory, performance, and implementation of the rodeo algorithm for arbitrary eigenstate preparation, energy spectrum determination, and calculation of transition matrix elements.
