Dynamical Imperfections in quantum computers

Abstract

We study the effects of dynamical imperfections in quantum computers. By considering an explicit example, we identify different regimes ranging from the low-frequency case, where the imperfections can be considered as static but with renormalized parameters, to the high frequency fluctuations, where the effects of imperfections are completely wiped out. We generalize our results by proving a theorem on the dynamical evolution of a system in the presence of dynamical perturbations.

4 pages, 3 figures

References in corpus (7)

• Quantum Zeno subspaces
• Quantum Computers, Factoring, and Decoherence
• Quantum Chaos Border for Quantum Computing
• Emergence of Quantum Chaos in Quantum Computer Core and How to Manage It
• Efficient Quantum Computing of Complex Dynamics
• Quantum computation with phase drift errors
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• Entanglement Storage Units
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• Dissipative decoherence in the Grover algorithm
• Decay of the Loschmidt echo in a time-dependent environment
• Fractal Fidelity as a signature of Quantum Chaos
• The modular multiplication operator and the quantized bakers maps
• Analyzing the Toffoli gate in disordered circuit QED
• Dynamical stability for finite quantum spin chains against a time-periodic inhomogeneous perturbation