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OPTIMIZED BLOCK ENCODING OF LOW-RANK FERMION HAMILTONIANS
OPTIMIZED BLOCK ENCODING OF LOW-RANK FERMION HAMILTONIANS
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机译:低级别费米氏汉密尔顿人的优化块编码
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摘要
In methods for simulating the evolution of a real-world quantum system over time, a state-preparation sequence of quantum gates is applied to a qubit register of a quantum computer. The state-preparation sequence is configured to prepare in the qubit register an initial model state representing an initial state of the real-world quantum system. A Hamiltonian operator for the real-world quantum system is received and used in the example method. The Hamiltonian operator represents two-body potential-energy interactions in a factorized form comprising at least one Majorana operator. A time-evolution-operator sequence of quantum gates comprising a block-encoded form of the Hamiltonian operator is now applied to the qubit register of the quantum computer, yielding a changed model state that represents a time- evolved state of the real-world quantum system. A measurement operation is applied subsequently to the qubit register. The measurement operation is configured to reveal an observable property of the changed model state.
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