activity
20042026
most citedNon-Markovian dynamics in a spin star system: Exact solution and approximation techniques

265 citations · 3.6k across the 120 of their papers we have counts for

collaborators
Showing 2022Show all

6 papers · 1 filter

quant-ph2022★ 6 cited

Error bounds for Lie Group representations in quantum mechanics

Lauritz van Luijk, Niklas Galke, Alexander Hahn +1

We provide state-dependent error bounds for strongly continuous unitary representations of connected Lie groups. That is, we bound the difference of two unitaries applied to a stat…

quant-ph2022★ 10 cited

A Multi-Qubit Quantum Gate Using the Zeno Effect

Philippe Lewalle, Leigh S. Martin, Emmanuel Flurin +5

The Zeno effect, in which repeated observation freezes the dynamics of a quantum system, stands as an iconic oddity of quantum mechanics. When a measurement is unable to distinguis…

quant-ph2022★ 9 cited

Selection and improvement of product formulae for best performance of quantum simulation

Mauro E. S. Morales, Pedro C. S. Costa, Giacomo Pantaleoni +3

Quantum algorithms for simulation of Hamiltonian evolution are often based on product formulae. The fractal methods give a systematic way to find arbitrarily high-order product for…

quant-ph2022★ 15 cited

State-dependent Trotter Limits and their approximations

Daniel Burgarth, Niklas Galke, Alexander Hahn +1

The Trotter product formula is a key instrument in numerical simulations of quantum systems. However, computers cannot deal with continuous degrees of freedom, such as the position…

quant-ph2022★ 6 cited

Scalable quantum control and non-abelian anyon creation in the Kitaev honeycomb model

Omar Raii, Florian Mintert, Daniel Burgarth

The Kitaev honeycomb model is a system allowing for experimentally realisable quantum computation with topological protection of quantum information. Practical implementation of qu…

math-ph2022

Stability and convergence of dynamical decoupling with finite amplitude control

Daniel Burgarth, Paolo Facchi, Robin Hillier

Dynamical decoupling is a key method to mitigate errors in a quantum mechanical system, and we studied it in a series of papers dealing in particular with the problems arising from…