Periodic Reporting for period 1 - MoSaiQC (Modular Systems for Advanced Integrated Quantum Clocks)
Période du rapport: 2020-03-01 au 2022-02-28
MoSaiQC trains 15 ESRs in this quantum technology, giving them hands-on experience in all aspects of optical clocks, from theoretical foundations, over the development of advanced components (e.g. laser systems, vacuum, electronics,...) to applications in all relevant industry sectors. The ESRs will push the boundaries of clock technology, especially in view of advanced, portable clocks and a promising, so far not realized type of clocks, superradiant clocks.
Most MoSaiQC partners have also been partners of the Quantum Flagship consortium iqClock, which combined academia and industry for research on optical clocks. MoSaiQC exploits the excellent foundation provided by iqClock, and goes one step beyond in its goals. We will build modules for a portable clock with higher integration and we will prepare the foundations for a portable superradiant clock.
The MoSaiQC training provides a broad range of transferable skills ranging from communication to ethics and from business acumen to gender issues. Secondment, visits, summer schools and other network events will provide opportunities to gain broad experience beyond the know-how of the hosting partner and allows the ESRs to establish long-lasting connections to international peers and stakeholders in academia and industry. MoSaiQC prepares the ESRs for important roles in the Quantum Revolution 2.0 that is taking off now.
Specific achievements were the following. ESR3 (UvA) has participated in building a kHz-transition superradiant laser, improved an ultrastable reference laser and is building an UHV cavity, all geared towards realizing a mHz-transition superradiant laser. ESR4 and ESR5 (UoB) have assessed optical clock end use cases. ESR4 has developed a small vacuum system housing a reference cavity, improved the main UHV vacuum system of her experiment and setup dipole trap optics. ESR5 has used UoB’s clock test setup to create Sr magneto-optical traps and is expanding from bosonic to fermionic Sr. ESR6 (TOP) received training in ultrafast fiber laser technology and frequency combs as well as introduction in related low noise optical measurements. She has assembled her first femtosecond oscillator for use in an advanced optical frequency comb. ESR7 (UMK) did prepare a software to autonomic and remote control of ECDL lasers. ESR8 (UMK) has participated in the construction of an UHV vacuum system and is currently preparing a laser cooling setup and a fibre noise cancellation setup. ESR9 (UCPH) has set up an ultrastable reference laser system which will be used for beat measurements against superradiant pulses. ESR10 (UCPH) has gained know-how in designing, building and controlling: a high finesse optical cavity, slave lasers, and a strontium beam experiment for continuous spectroscopy. ESR11 (TUW) has implemented a semi-classical simulation framework for numerical simulations of superradiant lasers and used it to help the experimental groups realise their experiments. ESR12 (UIBK) has theoretically evaluated inhomogeneous effects that increase the linewidth of superradiant lasers. ESR13 (BT) is creating a model to calculate the requirements of a telecom network for the dissemination of time and frequency at the national level. ESR14 (UoB) has determined the frequency of a Sr transition important for his project and optimised his Sr magneto-optical trap. ESR15 (NKT) has produced seed lasers relevant to the 689nm cooling laser, an appropriate amplifier reaching 1W, and a numerical model for improving amplifier design wrt power consumption and laser noise properties.
MoSaiQCs work accelerates the transition of optical clocks from the lab to the market, which offers great opportunities for telecommunications, navigation, sensing, and science.