QuantumFrontiers Newsletter #12 (Jul 2022)
Silke Ospelkaus-Schwarzer is new spokesperson of QuantumFrontiers
Change of leadership at QuantumFrontiers: On 1 July 2022, Professor Silke Ospelkaus-Schwarzer took over the role of spokesperson at the Cluster of Excellence from Professor Karsten Danzmann. Together with the co-spokespersons Professor Piet Schmidt and Professor Andreas Waag, Ospelkaus-Schwarzer now takes over the management for the second half of the cluster's term until 2025.
4.7 million euros funding for the QVLS High-Tech Incubator
Funding from the state of Lower Saxony is a unique opportunity to bring the region's scientific excellence to the market. With the so-called high-tech incubator, the foundation of start-ups that rely on quantum technologies will be supported substantially.
Leibniz University Hannover and TU Braunschweig are launching two linked Master's degree programmes in Quantum Engineering.
Two Master's programmes, one goal: the perfect combination of quantum knowledge and engineering ingenuity. Quantum Engineering at Leibniz University Hannover is starting in the winter semester 2022/23, Quantum Technologies in Electrical and Computer Engineering at TU Braunschweig follows in the winter semester 2023/24
Breaking GaN: Precise instruments for the next generation of LED chips
The path to new LED technologies is taken layer by layer and flooded with acid. Highly specialized cleanroom equipment is therefore needed to produce for example blue LEDs from gallium nitride (GaN) at the Institute of Semiconductor Technology at TU Braunschweig. Two new large-scale instruments now open up further avenues for semiconductor technology, from which QuantumFrontiers and the Quantum Valley Lower Saxony (QVLS) benefit in particular. Several years of work are behind this. After all, each of the devices has its own peculiarities that only an electron microscope can uncover.
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QuantumFrontiers at the IdeenExpo 2022
The Cluster was well represented at the IdeenExpo 2022 alongside the CRC TerraQ thanks to the commitment and support of QuantumFrontiers and TerraQ members. At the booth visitors could learn how to measure mass changes, for example, due recession or accumulation of water via the interactive models of an atomic clock, a gravimeter, an interferometer and two satellites.
Free the cat with quantum gates - a playful entry into the quantum world with virtual reality
In the QuantumVR project, researchers of TU Braunschweig have developed an escape game in which quantum gates can literally be touched thanks to virtual reality.
Promoting young talent on Girls' Day
The annual Girls' Day campaign aims to increase female pupils' enthusiasm for scientific subjects. The Cluster of Excellence QuantumFrontiers has also been committed to promoting young talent since its launch and has therefore opened some laboratories again this year. At the Einstein Elevator of Leibniz Universität Hannover and at LENA (Laboratory for Emerging Nanometrology) of TU Braunschweig, a total of 20 girls (and three boys) aged 11 to 17 gained insights into the work at modern physics research institutes on 28 April.
Research Highlights
Laser cooling meets nanostructures
To ready laboratory setups for field research or commercial applications, they need to become smaller and more robust. The new generation of magnetometers, optical atomic clocks, and quantum computers need, above all, compact solutions to generate the right laser beams. The laser beams trap, cool, and observe the individual atoms that are at the center of these instruments. Through QuantumFrontiers, four researchers from different institutions have jointly found a way to develop a compact laser cooling system for particularly challenging atoms. They published their work in the journal Physical Review Applied.
Do you have a research highlight you'd like to add to the QF Website and announce in the Newsletter? Please contact office@quantumfrontiers.uni-hannover.de.
Awards
Two ERC Grants for QuantumFrontiers members
Boris Chichkov was awarded an ERC Advanced Grant, Fei Ding an ERC Consolidator Grant. The two scientists will receive a combined total of more than 5 million euros for their research on the development of vascularised tissue and synchronisation in quantum networks.
Wolfgang Ertmer receives Lower Saxony Cross of Merit 1st class
Prof. Dr. Wolfgang Ertmer is one of the initiators of QuantumFrontiers. For his outstanding work in atomic and molecular physics, laser physics and quantum optics, he has now been awarded the Cross of Merit 1st Class (Niedersächsisches Verdienstkreuz 1. Klasse) by Lower Saxony's Minister of Science Björn Thümler.
Recent publications (Peer-reviewed and arXiv)
Bahamonde S, Golovnev A, Guzmán M-J, Said JL and Pfeifer C (2022), "Black holes in f(T,B) gravity: exact and perturbed solutions", Journal of Cosmology and Astroparticle Physics., Jan, 2022. Vol. 2022(01), pp. 037. IOP Publishing.
Barzel R, Bruschi DE, Schell AW and Lämmerzahl C (2022), "Observer dependence of photon bunching: The influence of the relativistic redshift on Hong-Ou-Mandel interference", Physical Review D., May, 2022. Vol. 105(10) American Physical Society (APS).
Bondza S, Lisdat C, Kroker S and Leopold T (2022), "Two-Color Grating Magneto-Optical Trap for Narrow-Line Laser Cooling", Physical Review Applied., Apr, 2022. Vol. 17(4) American Physical Society (APS).
Bretón N, Lämmerzahl C and Macías A (2022), "Rotating structure of the Euler-Heisenberg black hole", Physical Review D., May, 2022. Vol. 105(10) American Physical Society (APS).
Brockmüller E, Lange T, Wellmann F, Kimmelma O, Lowder T, Novotny S, Lachmayer R, Neumann J and Kracht D (2022), "Development of efficient CCC-fiber-based components for fiber lasers and amplifiers", Fiber Lasers XIX: Technology and Systems., Mar, 2022. SPIE.
Feke K, Alula MT, Spende H, Waag A and Lemmens P (2022), "Synthesis of a Recoverable CuS/Fe3O4 Composite Structure with Enhanced Oxidase-Like Activity for Detection of Chromium (VI)", Journal of Cluster Science., Jun, 2022. Springer Science and Business Media LLC.
Frost TC (2022), "Gravitational lensing in the charged NUT–de Sitter spacetime", Physical Review D., Mar, 2022. Vol. 105(6) American Physical Society (APS).
Hartig M-S, Schuster S and Wanner G (2022), "Geometric tilt-to-length coupling in precision interferometry: mechanisms and analytical descriptions", Journal of Optics., Apr, 2022. IOP Publishing.
Heinze J, Danzmann K, Willke B and Vahlbruch H (2022), "10 dB Quantum-Enhanced Michelson Interferometer with Balanced Homodyne Detection", Physical Review Letters., Jul, 2022. Vol. 129(3) American Physical Society (APS).
Hohls F, Kashcheyevs V, Stein F, Wenz T, Kaestner B and Schumacher HW (2022), "Controlling the error mechanism in a tunable-barrier nonadiabatic charge pump by dynamic gate compensation", Physical Review B., May, 2022. Vol. 105(20) American Physical Society (APS).
Kiehn H, Singh VP and Mathey L (2022), "Superfluidity of a laser-stirred Bose-Einstein condensate", Physical Review A., Apr, 2022. Vol. 105(4) American Physical Society (APS).
Meyer J, Dickmann W, Kroker S, Gaedtke M and Dickmann J (2022), "Thermally induced refractive index fluctuations in transmissive optical components and their influence on the sensitivity of Einstein telescope", Classical and Quantum Gravity., May, 2022. Vol. 39(13), pp. 135001. IOP Publishing.
Meylahn F, Knust N and Willke B (2022), "Stabilized laser system at 1550 nm wavelength for future gravitational-wave detectors", Physical Review D., Jun, 2022. Vol. 105(12) American Physical Society (APS).
Singh VP and Weimer H (2022), "Driven-Dissipative Criticality within the Discrete Truncated Wigner Approximation", Physical Review Letters., May, 2022. Vol. 128(20) American Physical Society (APS).
Spengler F, Rätzel D and Braun D (2022), "Perspectives of measuring gravitational effects of laser light and particle beams", New Journal of Physics., May, 2022. Vol. 24(5), pp. 053021. IOP Publishing.
Tollkühn M, Ritter PJ, Schilling M and Hampel B (2022), "THz microscope for three-dimensional imaging with superconducting Josephson junctions", Review of Scientific Instruments., Apr, 2022. Vol. 93(4), pp. 043708. AIP Publishing.
Wang Y, Bushmakin V, Stein GA, Schell AW and Gerhardt I (2022), "Optical Ramsey spectroscopy on a single molecule", Optica., Mar, 2022. Vol. 9(4), pp. 374. Optica Publishing Group.
Willms S, Melchert O, Bose S, Yulin A, Oreshnikov I, Morgner U, Babushkin I and Demircan A (2022), "Heteronuclear soliton molecules with two frequencies", Physical Review A., May, 2022. Vol. 105(5) American Physical Society (APS).
Zahn HP, Singh VP, Kosch MN, Asteria L, Freystatzky L, Sengstock K, Mathey L and Weitenberg C (2022), "Formation of Spontaneous Density-Wave Patterns in dc Driven Lattices", Physical Review X., Apr, 2022. Vol. 12(2) American Physical Society (APS).
Zhao Y, Capocasa E, Eisenmann M, Aritomi N, Page M, Guo Y, Polini E, Arai K, Aso Y, van Beuzekom M, Huang Y-C, Lee R-K, Lück H, Miyakawa O, Prat P, Shoda A, Tacca M, Takahashi R, Vahlbruch H, Vardaro M, Wu C-M, Leonardi M, Barsuglia M and Flaminio R (2022), "Improving the stability of frequency-dependent squeezing with bichromatic control of filter cavity length, alignment, and incident beam pointing", Physical Review D., Apr, 2022. Vol. 105(8) American Physical Society (APS).
Funding opportunities
Internal: New round of Flexible Fund proposals
The new deadlines for Flexible Funds proposals are:
Proposals > 50.000€: Tuesday, 16.08.2022
Proposals < 50.000€: Tuesday, 23.08.2022
IMPORTANT: Please remember that a Flexible Fund proposal must be assigned to a Research Unit or a Topical Group for submission. The respective Unit/Group leader will act as rapporteur in case the proposal amounts to more than 50k€. If your proposals affect several Units/Groups, please choose your primary one. Refer to our wiki for guidelines and templates.
Scientific Events
27th International Conference on Atomic Physics (ICAP)
17-22 Jul 2022, Toronto (Canada)
Young Atom Opticians Conference 2022
31 Jul-05 Aug 2022, Stuttgart (germany)
QMATH Masterclass on Entropy Inequalities in Quantum Information Science
22-26 Aug 2022, Copenhagen (Denmark)
Next Generation Quantum Computing
29-30 Aug 2022, Yokohama (Japan)
Solvay Workshop on Quantum Simulation
29-31 Aug 2022, Brussels (Belgium)
IAMP – EMS Summer School in Mathematical Physics
29 Aug-02 Sep 2022, Munich (Germany)
20th International Conference on the Physics of Highly Charged Ions
29 Aug-03 Sep 2022, Matsue (Japan)
NanoQI'22 Summerschool - Nanotechnology meets Quantum Information
30 Aug-02 Sep 2022, Donostia-San Sebastian (Spain)
FOMO 2022 Summer School and Conference
12-16 Sep and 19-23 Sep 2022, Trieste (Italy)
EQAI 2022 European Summer School on Quantum AI
12-16 Sep, Udine (Italy)
8th International Conference on Trapped Charged Particles and Fundamental Physics
25-30 Sep 2022, Glashütten (Germany)
Quantum sensors and tests of new physics
04-07 Oct 2022, Hannover (Germany)
ICIOP 2020/2021 - International Conference on Integrated Quantum Photonics
05-07 Oct 2022, Copenhagen (Denmark)
Quantum Innovation 2022 - International Symposium on Quantum Science, Technology and Innovation
28-30 Nov 2022, Tokyo (Japan), Virtual Conference
Open Positions
Managing Director (m/f/d) of QVLS
The Quantum Valley Lower Saxony e. V. is looking for a Managing Director to carry out activities related to the management and coordination of the initiative
Research Assistant (PhD position, m/f/d)
The research group of Prof. Dr. Christian Ospelkaus at the Institute of Quantum Optics invites applications for the position of a Research Assistant in quantum technologies focusing on the design of ion trap quantum processors
PTBs QUEST Institute for Experimental Quantum Metrology has open positions for a postdoctoral researcher as well as several PhD position and master theses. Further information on quantummetrology.de
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