BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//TYPO3/NONSGML News system (news)//EN
BEGIN:VEVENT
UID:news-94473@phys.au.dk
DTSTAMP:20260430T071313Z
DTSTART:20260429T090000Z
DTEND:20260429T100000Z
END:VEVENT
END:VCALENDAR




<div class="news news-single">
	<div class="article" itemscope="itemscope" itemtype="http://schema.org/Article">
		
	
			<script type="text/javascript">
				const showAllContentLangToken = "Vis alt indhold ";
			</script>

			
			

			<article class="typo3-delphinus delphinus-gutters">

				<!-- News PID: 83035 - used for finding folder/page which contains the news / event -->
				<!-- News UID: 94473 - the ID of the current news / event-->

				<div class="news-event">
					<div class="news-event__header">
						<!-- Categories -->
						
							<span class="text--stamp">
<!-- categories -->
<span class="news-list-category">
	
		
	
		
	
		
	
		
	
		
	
</span>

</span>
						

						<!-- Title -->
						<h1 itemprop="headline">Quantum Physics Talk - Frederik Nathan</h1>
						
					</div>

					
						<!-- Top image -->
						
					

					<div class="news-event__content">

						<!-- Events info box -->
						
								

								<div class="news-event__info theme--dark" id="event-info">
									<h2 class="screenreader-only">Oplysninger om arrangementet</h2>

									
											<!--- Same date -->
											<div class="news-event__info__item news-event__info__item--time">
												<h3 class="news-event__info__item__header text--label-header">Tidspunkt</h3>
												<div class="news-event__info__item__content">
													<span class="u-avoid-wrap">
														Onsdag 29. april 2026,
													</span>
													<span class="u-avoid-wrap">
														&nbsp;kl. 11:00 -  12:00
													</span>
													<p class="news-event__info__item__ical-link"><a href="/aktuelt/nyhed/artikel/quantum-physics-talk-frederik-nathan?tx_news_pi1%5Bformat%5D=ical&amp;type=9819&amp;cHash=c4b0a2df6740e9b7d2bcaab59a5befd1">Tilføj til kalender</a></p>
												</div>
											</div>
										

									<!-- Location detailed -->
									
											<!-- Location Simple -->
											
												<div class="news-event__info__item">
													<h3 class="news-event__info__item__header text--label-header">Sted</h3>
													<div class="news-event__info__item__content">
														<p>1523-318</p>
													</div>
												</div>
											
										

									<!-- Organizer detailed -->
									
											<!-- Organizer Simple -->
											
										

									<!-- Price -->
									

									<!-- Event link -->
									

									<!-- Registration -->
									
								</div>
							

						
							<!-- Media -->
							
								



							
						

						
							<div class="news-event__content__text">
								<span class="text--byline" id="byline">
									

									<!-- Author -->
									
										<span itemprop="author" itemscope="itemscope" itemtype="http://schema.org/Person">
											
													Af
												

											
													<a href="mailto:brigitte@phys.au.dk">
														<span itemprop="name">Brigitte Christina Harke Henderson</span>
													</a>
												
										</span>
									
								</span>

								

									<!-- Body text -->
									<p><strong>Speaker</strong>: Frederik Nathan, Niels Bohr Institute, University of Copenhagen&nbsp;<br><strong>Title</strong>: Self-correcting qubits: harnessing dissipation for quantum error correction in driven-dissipative circuits<br><br><strong>Abstract</strong>:<br>We propose a protocol for creating and dissipatively error-correcting a qubit encoded in the Fock space of a superconducting resonator mode.&nbsp;The device consists&nbsp;of&nbsp;a high-impedance LC resonator coupled to a Josephson junction and a resistor through a time-dependent switch.&nbsp;Controlling the switch via a&nbsp;particular family of stepwise&nbsp;protocols drives the system into a regime of&nbsp;<em>complete</em> <em>dissipative error correction</em>, where the resistor acts as a sink for noise-induced entropy, leading it to correct both dephasing and bit-flip errors. We confirm the emergence of dissipative error correction in simulations, and show that it leads to exponential enhancement of coherence time, reaching macroscopic (+10 ms) scales for near-feasible parameters, even in the presence of extrinsic noise.&nbsp;The qubit supports self-correcting Clifford gates, where control noise is dissipatively corrected, leading to exponentially-scaling gate fidelity. A self-correcting non-Clifford gate can be implemented by augmenting the circuit with ancilla Josephson junctions.<br>&nbsp;<br>&nbsp;Coffee and cake will be served</p>
								
							</div>
						
					</div>

					
						<!-- Content elements -->
						
					
				</div>
			</article>

			
				
				
			

			<!-- related things -->
			
		

	</div>
</div>