Defects in solids for quantum technologies
Location: Stockholm University, Stockholm, Sweden
Announcement: DSQT 2024 will be held in Budapest from the 10th of June to the 14th of June. Click here to reach the webpage.
The DSQT conference aims to bring together world-leading theoreticians and experimentalists active in the field of quantum devices based on solid-state qubits to improve interdisciplinary cooperation overcoming traditional boundaries between scientific disciplines.
Form of the conference
DSQT2022 will be an onsite conference with only in-person participation. However, options to give presentations remotely will be considered if necessary.
The conference will take place at Stockholm University - AlbaNova University Centre, Roslagstullsbacken 21, 114 21 Stockholm, Sweden.
If you have any questions, you may contact us via email at firstname.lastname@example.org.
The abstract submission closed on 8th of April 2022 (23:59 CET).
The preferred poster format is size A0.
We recommend printing your poster before leaving for the conference. However, we are able to print at the venue at a service cost of ca. 600 SEK, should on-site printing be necessary. Please keep in mind that printing could require a lot of time and that only one order can be done at a time. Please contact us in advance if you know on-site printing will be necessary.
We are pleased to announce a Best Poster Prize in a value of 500 EUR. The prize has been made possible by the offer our sponsor: Nanophotonics | De Gruyter.
By default, all posters presented in the poster session, starting at 19:00 on Wednesday, will take part in the competition. The winner will be selected based on the votes of our distinguished invited speakers and announced at the Best Poster Prize Ceremony at the conference dinner on Thursday evening.
Early bird registration until 10th of May.
The registration fee is 6400 Sek (ca 600 EUR) for early bird participants and 7900 Sek (750 EUR) for regular participants. The registration fee includes VAT and admission to all the scientific events at the conference. In addition it covers lunches, coffee breaks, the conference dinner and social events organized at the conference.
Cancellation of registration will be accepted until May 10, 2022, up to which date the total amount will be refunded, except for a cancellation fee of 500 SEK. We regret that no refunds or reductions of fees will be accepted for cancellations made after May 10, 2022, nor for no-shows for any reasons. Cancellation of only meals, is non-refundable.
In case you need a visa to enter Sweden, contact us well in advance to be able to prepare the necessary invitation letter for you.
Public Transport & Directions
The venue is located on a hill known as ”Roslagstullsbacken”, which is reachable on foot from the main road (Valhallavägen) and KTH campus, or directly by public bus nr 61. The closest subway station is the “Tekniska Högskolan” station on the red subway line, which is a 15-20 min walk from the venue.
Commuting to the conference one may:
Take subway to ”Tekniska Högskolan” → Subway exit toward “Odengatan” → Walk ca. 15 min or take bus 61 toward “Ruddammen” leaving every 10-15 min.
For those staying in the city center closer to subway stations on the green or blue line, one may also:
Take subway to “Odenplan” (green line) or “Fridhemsplan” (green/blue line) → Bus 61 toward “Ruddammen” or (at Odenplan) bus 50 to “Roslagstull” and walk the remaining 5 min.
Please keep in mind to avoid crowds during rush hours if you decide to take public transportation.
Conference Dinner & Excursion
A booked tour of the Vasa Museum starts at 17.00. A group will leave from the Albanova main entrance to go to the Vasa Museum at 16.00. Others are free to go directly to the Museum on their own.
The dinner will start at 18.30 at the Skansen restaurant "Solliden". We will be going from the Vasa Museum to Skansen at 18.10 in a group. Note that we will enter Skansen after closing hours and you will not get in without the organisers. People not following the group can meet at the skansen main gates at 18.25. For immediate contact, call +46762569793.
We implement in real time the health and safety measures taken by the local authority at the conference venue. In addition, we encourage all the participants to strictly follow the regulations of their institutes and home countries when attending our conference.
Furthermore, we will take additional health and safety measures. First of all, considerable space will be secured for the conference to ensure sufficient social distance for the attendees. We have booked a conference room for 260 people. Similarly spacious room will be booked for the poster session. In order to minimize the contact with people outside the conference, lunch will be provided at the conference site and the conference dinner will be served on a boat booked solely for the conference attendees. Automatic touchless disinfection stations will be placed at the conference venue.
Chris Van de Walle (University of California)
Giulia Galli (University of Chicago)
Sophia Economou (Virginia Polytechnic Institute)
Yuan Ping (University of California)
Öney O. Soykal (Booz Allen Hamilton)
Marcus W. Doherty (Australian National University)
Jeffrey R. Reimers (Shanghai University & University of Technology Sydney)
Christoph Freysoldt (Max-Planck-Institut für Eisenforschung)
Uwe Gerstmann (University of Paderborn)
Gergő Thiering (Wigner Research Centre for Physics)
Daniel Cohen (Hebrew University of Jerusalem)
Lukas Razinkovas (Center for Physical Sciences and Technology, Lithuania)
Hosung Seo (Ajou University)
Rickard Armiento (Linköping University)
Joel Davidsson (Linköping University)
David Awschalom (University of Chicago)
Lee Bassett (University of Pennsylvania)
Jared Rovny (Princeton University)
Carlos A. Meriles (CUNY-City College of New York)
Rachael L. Myers-Ward (Naval Research Laboratory)
Brenda L. VanMil (Army Research Laboratory)
Daniil Lukin (Stanford University)
Igor Aharonovich (University of Technology Sydney)
Michael Trupke (University of Vienna)
Milos Nesladek (Hasselt University)
Georgy Astakhov (Helmholtz-Zentrum Dresden-Rossendorf)
Christoph Becher (Universität des Saarlandes)
Vladimir Dyakonov (University of Würzburg)
Jan Meijer (Universität Leipzig)
Jörg Wrachtrup (University of Stuttgart)
Romana Schirhagl (Groningen University)
Vanya Darakchieva (Linköping University)
Jawad Ul-Hassan (Linköping University)
Helena S. Knowles (University of Cambridge)
John Morton (University College London)
Kai-Mei Fu (University of Washington)
Marina Radulaski (University of California)
More about the topic and the conference
Quantum devices of the next generation are expected to actively create, manipulate and read out quantum states of matter. Point defect quantum states in wide band gap semiconductors may realize single photon sources and quantum bits that can be harnessed in quantum information processing and nanoscale sensor applications that may revolutionize info-communication technology, biological research and therapy. The leading contender is the nitrogen-vacancy center in diamond that may be considered as a robust quantum tool. However, the possibility to realize bright single-photon emitters and single spin sources (single defects with spin) in SiC, Si, and hBN have been demonstrated. Researchers face many materials science problems in fabricating point defect quantum states with favorable intrinsic properties that can be perturbed by other defects either in bulk or at the surface of the devices. First principles theoretical simulations have been demonstrated as an essential tool in understanding the underlying physics of these atomic scale systems as well as in identification of potential new quantum bits and single photon emitters in wide band gap semiconductors. Therefore, tight collaboration of experimental and atomistic simulation researchers is essential for a rapid progress in the field.
Semiconductor technology lies at the heart of modern industry, science and communication networks. Its vast importance is given by the versatility of semiconductors as power electronics, information processors, sensors and mechanical devices. Keeping the current pace of increasing the information processing power or the number of components in a microprocessor, the bit – the basic unit of information – will have to be stored in atomic- and subatomic-scale systems, such as individual atoms, ions, electrons or photons, whose behavior is governed by the laws of quantum mechanics. Sensors on the atomic scale are also required for monitoring single molecules. The transition from conventional technologies to quantum technologies is therefore unavoidable. Considerable effort has been spent to develop a basic unit of quantum information processing (or qubit) from different individual quantum systems, such as single atoms or ions trapped in a crystal lattice, single Josephson superconducting devices, single photons emitted from quantum dots or single photons/spins associated with point defects in semiconductors. However, most of these systems can only operate at cryogenic temperatures or in ultra-high vacuum. Spins associated with defects in semiconductors, such as the complex of a vacancy and a nearby N atom (NV center) in diamond, have shown excellent optical and spin properties suitable for room-temperature qubits. Recently, in collaboration with world leading research groups, members of our team have for the first time engineered and coherently controlled single electron spins associated with the divacancy and the Si vacancy in silicon carbide (SiC), demonstrating that SiC can, in principle, combine its well-developed semiconductor technology and the best of diamond, allowing for a single optically addressable spin, with long coherence time even at room temperature, embedded in a high-performance electronic material. The significance of this conference is to stimulate a synergistic effort of theoreticians and experimentalists towards discovering functional point defects in a set of accessible wide-band gap semiconductors that have not been or have just recently been considered for applications.
At this point, mainly diamond and SiC have been considered as host materials for point defect for quantum technologies. Restricting the research of functional point defect to this tiny subset of semiconducting materials can be major obstacle in the development practical applications. There are numerous potentially interesting 2D and 3D semiconductors, each of which may host hundreds of different point defect with several stable charge states. So far only a handful of those have been tested as potential hosts for room-temperature qubits.
During the conference, we will address this challenging task. Innovation is rooted in the collaboration of scientists of different experiences. By bringing together prominent members of different communities and providing place and time for the discussions, the conference will contribute to the opening of new directions in the field. The conference will stimulate a systematic exploration of the vast yet unexplored area of alternative materials hosting novel point defects with high potential for next generation quantum technologies.
Adam Gali (Budapest University of Technology and Economics) - Organiser
Viktor Ivády (Eötvös Loránd University) - Organiser
Igor Abrikosov (Linkoping University) - Organiser & speaker
Mohamed Bourennane (Stockholm University) - Organiser
Vanya Darakchieva (Linköping University) - Organiser & speaker
Nguyen Son (Linköping University) - Organiser & speaker
Yuan Ping (University of Wisconsin-Madison) - Organiser & speaker