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						<h1 itemprop="headline">Talk - Frank K. Wilhelm-Mauch: Optimal control for scalable quantum computers</h1>
						
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														Thursday  7  February 2019,
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									<p><strong>Frank K. Wilhelm-Mauch</strong><br>Saarland University 
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<p><strong>Optimal control for scalable quantum computers</strong></p>
<p>Long considered a far-off vision, quantum computing is now becoming a reality. Small but nontrivial quantum computers of up to 19 quantum bits (qubits) are offered as a cloud service and announcements of near-term chips reach up to 72 qubits. Many of these processors are based on the Josephson qubit platform.&nbsp;</p>
<p>Reaching true quantum advantage in these Noisy Intermediate Scale Quantum (NISQ) devices requires the executable quantum volume (a product of number of qubits, gate quality, and processor connectivity) large enough. Gate quality is currently equally limited by decoherence and control errors, both of which can be fought with optimal control.&nbsp;</p>
<p>Optimal control solutions for these challenges have to be effective, simple, and need to account for both spurious degrees of freedom and model uncertainty. This can be accomplished by simple recipes like DRAG and WAHWAH as well as by optimal control with integrated tuneup. To achieve high precision in this domain, effective characterization is an intricate part of the control procedure.&nbsp;</p>
<p>The talk will decribe all these issues, including the speaker’s contributions to it.&nbsp;?</p>
								
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