Quantum

I am interested in modelling, simulating, learning and controlling quantum systems with applications in quantum technologies, often related to spin dynamics. A particular interesting aspect of this is to learn physical laws of a system to enable to control it. Applications are focused on quantum spin networks, spintronics, magnetic resonance imaging and spectroscopy, and chemical synthesis.

L-DOPA Scissors — F. C. Langbein. Optimal Control of Chemical Reactions with Data-Driven Models. Presentation at the Closed Loop Optimisation of Synthesis meeting at GSK, 16 April 2015, Stevenage, United Kingdom. [PDF]

Optimal Control of Chemical Reactions with Data-Driven Models

16th April 2015 in Chemical Synthesis tagged presentation

Spin Network Router — January 2015 - December 2017: Data-Driven Simulation of Quantum Spin Network Devices. PI: F. C. Langbein with S. G. Schirmer, K. Kalna, A. Martinez, D. Burgarth.

Data-Driven Simulation of Quantum Spin Network Devices

1st January 2015 in Learning & Identification / Quantum Control / Spin Dynamics tagged funding

ft-img — Sophie Schirmer, Frank Langbein. The ubiquitous problem of learning system parameters for dissipative two-level quantum systems: Fourier analysis versus Bayesian estimation. Phys Rev A, 91:022125, 2015. [DOI:10.1103/PhysRevA.91.022125] [arXiv:1412.4282] [PDF]

The ubiquitous problem of learning system parameters for dissipative two-level ...

4th November 2014 in Learning & Identification tagged publication

spin-sysid — S. G. Schirmer, F. C. Langbein. Characterization and Control of Quantum Spin Chains and Rings. In: Proc. 6th Int Symp Communications, Control and Signal Processing (ISCCSP), pp. 615 – 619, May 2014. [DOI:10.1109/ISCCSP.2014.6877950] [arXiv:1403.0226] [PDF]

Characterization and Control of Quantum Spin Chains and Rings

4th November 2014 in Learning & Identification / Quantum Control / Spin Dynamics tagged publication

mtp — E. Jonckheere, F. C. Langbein, S. Schirmer. Quantum networks: Anti-core of spin chains. Quantum Information Processing. 13(7):1607-1637, 2014. [DOI:10.1007/s11128-014-0755-5] [arXiv:1403.0159] [PDF]

Quantum networks: Anti-core of spin chains

4th November 2014 in Spin Dynamics tagged publication

EMF MRI — August 2014 - August 2015: Cardiff University Research Leave Fellowship for Frank C Langbein. Teaching replacement costs and £3,000 support.

Cardiff University Research Leave Fellowship

1st August 2014 in Learning & Identification / Quantum / Quantum Control / Spin Dynamics tagged funding

October 2013 – March 2016: Closed loop optimisation for sustainable chemical manufacture. EPSRC EP/L003309/1. PI: RJ Whitby, CoI: D Woods, FC Langbein, A Nordon, A Lapkin. Industrial partners: Cyclofluidic Ltd, GlaxoSmithKline, Syngenta. £973,523.