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17 papers · 2 filters
Controlling wave-particle duality with quantum entanglement
Kai Wang, Daniel R. Terno, Caslav Brukner +2
Wave-particle duality and entanglement are two fundamental characteristics of quantum mechanics. All previous works on experimental investigations in wave{particle properties of si…
Efficient quantum computation of molecular forces and other energy gradients
Thomas E. O'Brien, Michael Streif, Nicholas C. Rubin +12
While most work on the quantum simulation of chemistry has focused on computing energy surfaces, a similarly important application requiring subtly different algorithms is the comp…
Nonlinear quantum error correction
Maximilian Reichert, Louis W. Tessler, Marcel Bergmann +2
We introduce a theory of quantum error correction (QEC) for a subclass of states within a larger Hilbert space. In the standard theory of QEC, the set of all encoded states is form…
Modified coherence of quantum spins in a damped pure-dephasing model
Mattias T. Johnsson, Ben Q. Baragiola, Thomas Volz +1
We consider a spin- particle coupled to a structured bath of bosonic modes that decay into thermal baths. We obtain an analytic expression for the reduced spin state and use it…
Unification of Random Dynamical Decoupling and the Quantum Zeno Effect
Alexander Hahn, Daniel Burgarth, Kazuya Yuasa
Periodic deterministic bang-bang dynamical decoupling and the quantum Zeno effect are known to emerge from the same physical mechanism. Both concepts are based on cycles of strong…
One bound to rule them all: from Adiabatic to Zeno
Daniel Burgarth, Paolo Facchi, Giovanni Gramegna +1
We derive a universal nonperturbative bound on the distance between unitary evolutions generated by time-dependent Hamiltonians in terms of the difference of their integral actions…