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quant-ph2023
Quantum Dynamics Happens Only on Paper: QBism's Account of Decoherence
John B. DeBrota, Christopher A. Fuchs, Ruediger Schack
QBism has long recognized quantum states, POVM elements, Kraus operators, and even unitary operations to be cut from the same cloth: They express aspects of an agent's belief syste…
quant-ph2023★ 4 cited
Decoherence Limits the Cost to Simulate an Anharmonic Oscillator
Tzula B. Propp, Sayonee Ray, John B. DeBrota +2
We study how decoherence increases the efficiency with which we can simulate the quantum dynamics of an anharmonic oscillator, governed by the Kerr effect. As decoherence washes ou…