213 citations · 1.3k across the 40 of their papers we have counts for
7 papers · 2 filters
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…
Optimizing for an arbitrary perfect entangler: I. Functionals
Paul Watts, Jiří Vala, Matthias M. Müller +5
Optimal control theory is a powerful tool for improving figures of merit in quantum information tasks. Finding the solution to any optimal control problem via numerical optimizatio…
Exploiting Non-Markovianity of the Environment for Quantum Control
Daniel M. Reich, Nadav Katz, Christiane P. Koch
When the environment of an open quantum system is non-Markovian, amplitude and phase flow not only from the system into the environment but also back. Here we show that this featur…
Optimal quantum control of Bose-Einstein condensates in magnetic microtraps: Comparison of GRAPE and Krotov optimization schemes
Georg Jäger, Daniel Reich, Michael H. Goerz +2
We study optimal quantum control of the dynamics of trapped Bose-Einstein condensates: The targets are to split a condensate, residing initially in a single well, into a double wel…
Arbitrary quantum-state preparation of a harmonic oscillator via optimal control
Katharina Rojan, Daniel M. Reich, Igor Dotsenko +3
The efficient initialization of a quantum system is a prerequisite for quantum technological applications. Here we show that several classes of quantum states of a harmonic oscilla…
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…