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Computational advantage from quantum superposition of multiple temporal orders of photonic gates
Márcio M. Taddei, Jaime Cariñe, Daniel Martínez +9
Models for quantum computation with circuit connections subject to the quantum superposition principle have been recently proposed. There, a control quantum system can coherently d…
Error-run-time trade-off in the adiabatic approximation beyond scaling relations
M. R. Passos, M. M. Taddei, R. L. de Matos Filho
The use of the adiabatic approximation in practical applications, as in adiabatic quantum computation, demands an assessment of the errors made in finite-time evolutions. Aiming at…
Distillation of quantum steering
R. V. Nery, M. M. Taddei, P. Sahium +3
We show -- both theoretically and experimentally -- that Einstein-Podolsky-Rosen steering can be distilled. We present a distillation protocol that outputs a perfectly correlated s…
Quantum superpositions of causal orders as an operational resource
Márcio M. Taddei, Ranieri V. Nery, Leandro Aolita
Causal nonseparability refers to processes where events take place in a coherent superposition of different causal orders. These may be the key resource for experimental violations…
Quantum speed limit for physical processes
M. M. Taddei, B. M. Escher, L. Davidovich +1
The evaluation of the minimal evolution time between two distinguishable states of a system is important for assessing the maximal speed of quantum computers and communication chan…