89 citations · 270 across the 8 of their papers we have counts for
8 papers
Disentangling magic states with classically simulable quantum circuits
Gerald E. Fux, Benjamin Béri, Rosario Fazio +1
We show that states obtained from deep random Clifford circuits doped with non-Clifford phase gates (including T-gates and -gates) can be disentangled completely…
Unifying methods for optimal control in non-Markovian quantum systems via process tensors
Carlos Ortega-Taberner, Eoin O'Neill, Eoin Butler +2
The large dimensionality of environments is the limiting factor in applying optimal control to open quantum systems beyond Markovian approximations. Multiple methods exist to simul…
OQuPy: A Python package to efficiently simulate non-Markovian open quantum systems with process tensors
Gerald E. Fux, Piper Fowler-Wright, Joel Beckles +11
Non-Markovian dynamics arising from the strong coupling of a system to a structured environment is essential in many applications of quantum mechanics and emerging technologies. De…
Entanglement-magic separation in hybrid quantum circuits
Gerald E. Fux, Emanuele Tirrito, Marcello Dalmonte +1
Magic describes the distance of a quantum state to its closest stabilizer state. It is -- like entanglement -- a necessary resource for a potential quantum advantage over classical…
Optimizing performance of quantum operations with non-Markovian decoherence: the tortoise or the hare?
Eoin P. Butler, Gerald E. Fux, Carlos Ortega-Taberner +3
The interaction between a quantum system and its environment limits our ability to control it and perform quantum operations on it. We present an efficient method to find optimal c…
Tensor network simulation of chains of non-Markovian open quantum systems
Gerald E. Fux, Dainius Kilda, Brendon W. Lovett +1
We introduce a general numerical method to compute dynamics and multi-time correlations of chains of quantum systems, where each system may couple strongly to a structured environm…
Using the Environment to Understand non-Markovian Open Quantum Systems
Dominic Gribben, Aidan Strathearn, Gerald E. Fux +2
Tracing out the environmental degrees of freedom is a necessary procedure when simulating open quantum systems. While being an essential step in deriving a tractable master equatio…
Efficient exploration of Hamiltonian parameter space for optimal control of non-Markovian open quantum systems
Gerald E. Fux, Eoin P. Butler, Paul R. Eastham +2
We present a general method to efficiently design optimal control sequences for non-Markovian open quantum systems, and illustrate it by optimizing the shape of a laser pulse to pr…