Search Results - "Schirmer, S G"

Second order gradient ascent pulse engineering by de Fouquieres, P., Schirmer, S.G., Glaser, S.J., Kuprov, Ilya

“…[Display omitted] ► A fast optimal control procedure for NMR and ESR shaped pulse generation is presented. ► Exact propagator gradients with the BFGS Hessian…”
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Maximizing the Hilbert space for a finite number of distinguishable quantum states by Greentree, Andrew D, Schirmer, S G, Green, F, Hollenberg, Lloyd C L, Hamilton, A R, Clark, R G

“…Given a particular quantum computing architecture, how might one optimize its resources to maximize its computing power? We consider quantum computers with a…”
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Efficient algorithms for optimal control of quantum dynamics: the Krotov method unencumbered by Schirmer, S G, Fouquieres, Pierre de

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Implementation of fault-tolerant quantum logic gates via optimal control by Nigmatullin, R, Schirmer, S G

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Quantum system characterization with limited resources by Oi, D. K. L., Schirmer, S. G.

“…The construction and operation of large-scale quantum information devices presents a grand challenge. A major issue is the effective control of coherent…”
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Robust entanglement in antiferromagnetic Heisenberg chains by single-spin optimal control by Wang, Xiaoting, Bayat, Abolfazl, Schirmer, S. G., Bose, Sougato

“…We demonstrate how near-perfect entanglement (in fact arbitrarily close to maximal entanglement) can be generated between the end spins of an antiferromagnetic…”
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Time Domain Sensitivity of the Tracking Error by O'Neil, S, Schirmer, S. G, Langbein, F. C, Weidner, C. A, Jonckheere, E

“…A strictly time-domain formulation of the log-sensitivity of the error signal to structured plant uncertainty is presented and analyzed through simple but…”
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Applying classical control techniques to quantum systems: entanglement versus stability margin and other limitations by Weidner, C. A., Schirmer, S. G., Langbein, F. C., Jonckheere, E.

“…Development of robust quantum control has been challenging and there are numerous obstacles to applying classical robust control to quantum system including…”
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Reinforcement Learning vs. Gradient-Based Optimisation for Robust Energy Landscape Control of Spin-1/2 Quantum Networks by Khalid, I., Weidner, C. A., Jonckheere, E. A., Schirmer, S. G., Langbein, F. C.

“…We explore the use of policy gradient methods in reinforcement learning for quantum control via energy landscape shaping of XX-Heisenberg spin chains in a…”
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Analyzing and Unifying Robustness Measures for Excitation Transfer Control in Spin Networks by O'Neil, S. P, Khalid, I, Rompokos, A. A, Weidner, C. A, Langbein, F. C, Schirmer, S. G, Jonckheere, E. A

“…in IEEE Control Systems Letters, vol. 7, pp. 1783-1788, 2023 Recent achievements in quantum control have resulted in advanced techniques for designing…”
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Reinforcement Learning vs. Gradient-Based Optimisation for Robust Energy Landscape Control of Spin-1/2 Quantum Networks by Khalid, I, Weidner, C. A, Jonckheere, E. A, Schirmer, S. G, Langbein, F. C

“…IEEE Conference on Decision and Control (CDC), 2021, pp. 4133-4139 We explore the use of policy gradient methods in reinforcement learning for quantum control…”
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Model type identification of four-level quantum systems by projective measurement by Zhou Weiwei, Sun Zhi-Qiang, Schirmer, S G, Gong Er-Ling, Xie Hong-Wei, Zhang Ming

“…Hamiltonian of finite-dimensional quantum closed systems can be classified by its degeneracy and corresponding parameter models for the systems can be given…”
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Analysis of Lyapunov Method for Control of Quantum States by Xiaoting Wang, Schirmer, S G

“…The natural trajectory tracking problem is studied for generic quantum states represented by density operators. A control design based on the Hilbert-Schmidt…”
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Time-Domain Sensitivity of the Tracking Error by O'Neil, S., Schirmer, S. G., Langbein, F. C., Weidner, C. A., Jonckheere, E.

“…A strictly time-domain formulation of the log-sensitivity of the error signal to structured plant uncertainty is presented and analyzed through simple but…”
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Stabilizing open quantum systems by Markovian reservoir engineering by Schirmer, S. G., Wang, Xiaoting

“…We study open quantum systems whose evolution is governed by a master equation of Kossakowski-Gorini-Sudarshan-Lindblad type and give a characterization of the…”
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Symmetry and Subspace Controllability for Spin Networks With a Single-Node Control by Xiaoting Wang, Pemberton-Ross, Peter, Schirmer, S. G.

“…We consider the relation of symmetries and subspace controllability for spin-1/2 networks with XXZ couplings, subject to perturbation of a single node by a…”
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Complete controllability of quantum systems by Schirmer, S. G., Fu, H., Solomon, A. I.

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Information transfer fidelity in spin networks and ring-based quantum routers by Jonckheere, E., Langbein, F. C., Schirmer, S. G.

“…Spin networks are endowed with an information transfer fidelity (ITF), which defines an absolute upper bound on the probability of transmission of an…”
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Stabilizing Open Quantum Systems by Markovian Reservoir Engineering by Schirmer, S. G, Wang, Xiaoting

“…Phys. Rev. A 81, 062306 (2010) We study open quantum systems whose evolution is governed by a master equation of Kossakowski-Gorini-Sudarshan-Lindblad type and…”
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Experimental Hamiltonian identification for controlled two-level systems by Schirmer, S. G., Kolli, A., Oi, D. K. L.

“…We present a strategy to empirically determine the internal and control Hamiltonians for an unknown two-level system (black box) subject to various (piecewise…”
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