122 citations · 521 across the 16 of their papers we have counts for
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Optimizing for an arbitrary perfect entangler. II. Application
Michael H. Goerz, Giulia Gualdi, Daniel M. Reich +7
The difficulty of an optimization task in quantum information science depends on the proper mathematical expression of the physical target. Here we demonstrate the power of optimiz…
Optimal qudit operator bases for efficient characterization of quantum gates
Daniel M. Reich, Giulia Gualdi, Christiane P. Koch
For certain quantum operations acting on qubits, there exist bases of measurement operators such that estimating the average fidelity becomes efficient. The number of experiments r…
Efficient Monte Carlo characterization of quantum operations for qudits
Giulia Gualdi, David Licht, Daniel M. Reich +1
For qubits, Monte Carlo estimation of the average fidelity of Clifford unitaries is efficient -- it requires a number of experiments that is independent of the number of qubits…
Control of open quantum systems: Case study of the central spin model
Christian Arenz, Giulia Gualdi, Daniel Burgarth
We study the controllability of a central spin guided by a classical field and interacting with a spin bath, showing that the central spin is fully controllable independently of th…
Optimal strategies for estimating the average fidelity of quantum gates
Daniel M. Reich, Giulia Gualdi, Christiane P. Koch
We show that the minimum experimental effort to characterize the proper functioning of a quantum device scales as 2^n for n qubits and requires classical computational resources ~…
Minimum number of input states required for quantum gate characterization
Daniel M. Reich, Giulia Gualdi, Christiane P. Koch
We derive an algebraic framework which identifies the minimal information required to assess how well a quantum device implements a desired quantum operation. Our approach is based…