Periodic Reporting for period 1 - FLATS (Flat Bands for Quantum Metrology)
Okres sprawozdawczy: 2023-04-01 do 2024-03-31
The fundamental limit of measurement accuracy is dictated by quantum mechanics, offering potential beyond classical approaches in metrology and sensing.
However, practical implementation of quantum standards and sensors faces challenges due to inherent incompatibilities in operating conditions,
such as magnetic fields and superconductivity, which restricts their accessibility and hinders the advancement of accurate quantum technologies.
In FLATS, we envision leveraging twisted bilayer graphene as a versatile platform to pioneer electrical quantum metrology standards operating under compatible conditions,
thus unlocking new possibilities for metrological sensors that transcend the limitations of the International System of Units (SI).
By uniting these endeavors on a common platform, we aim to create a unified, on-chip quantum laboratory capable of supporting multiple applications.
Our strategy involves establishing a European twistronics platform to achieve unprecedented control over the relative angular alignment of graphene and hexagonal boron nitride (hBN) layers.
Through this platform, we will develop innovative quantum electrical standards using twisted heterostructures,
laying the foundation for a novel on-chip metrological quantum laboratory.
This initiative marks a pivotal step toward implementing quantum-enhanced measurements for transformative metrological applications.
However, practical implementation of quantum standards and sensors faces challenges due to inherent incompatibilities in operating conditions,
such as magnetic fields and superconductivity, which restricts their accessibility and hinders the advancement of accurate quantum technologies.
In FLATS, we envision leveraging twisted bilayer graphene as a versatile platform to pioneer electrical quantum metrology standards operating under compatible conditions,
thus unlocking new possibilities for metrological sensors that transcend the limitations of the International System of Units (SI).
By uniting these endeavors on a common platform, we aim to create a unified, on-chip quantum laboratory capable of supporting multiple applications.
Our strategy involves establishing a European twistronics platform to achieve unprecedented control over the relative angular alignment of graphene and hexagonal boron nitride (hBN) layers.
Through this platform, we will develop innovative quantum electrical standards using twisted heterostructures,
laying the foundation for a novel on-chip metrological quantum laboratory.
This initiative marks a pivotal step toward implementing quantum-enhanced measurements for transformative metrological applications.
In the early stages of our project, we have made significant progress towards realizing the objectives set forth by FLATS.
Central to this project was the deployment of the twistronics platform,
which has served as a collaborative hub for various members within the FLATS consortium.
Furthermore, our ongoing numerical simulations are close to determine the optimal angle for MATBG (twisted bilayer graphene) , paving the way for enhanced experimental design and outcomes.
If Quantum Anomalous Hall Effect (QAHE) is sill unmeasured, we have successfully created Josephson Junctions and single photon detectors within MATBG,
showcasing the versatility and potential of this material platform.
Moreover, we have achieved breakthroughs in experimental demonstrations, including the implementation of the Hong-Ou-Mandel experiment and tomography protocols under finite magnetic fields.
In the near future, we are committed to expanding these experiments to zero magnetic field conditions.
Overall, our progress during this initial phase highlights our dedication to advancing the frontiers of twistronics and quantum materials, enabling to realize the ambitious objectives outlined by the FLATS project.
Central to this project was the deployment of the twistronics platform,
which has served as a collaborative hub for various members within the FLATS consortium.
Furthermore, our ongoing numerical simulations are close to determine the optimal angle for MATBG (twisted bilayer graphene) , paving the way for enhanced experimental design and outcomes.
If Quantum Anomalous Hall Effect (QAHE) is sill unmeasured, we have successfully created Josephson Junctions and single photon detectors within MATBG,
showcasing the versatility and potential of this material platform.
Moreover, we have achieved breakthroughs in experimental demonstrations, including the implementation of the Hong-Ou-Mandel experiment and tomography protocols under finite magnetic fields.
In the near future, we are committed to expanding these experiments to zero magnetic field conditions.
Overall, our progress during this initial phase highlights our dedication to advancing the frontiers of twistronics and quantum materials, enabling to realize the ambitious objectives outlined by the FLATS project.
We have achieved a significant milestone by demonstrating the first-ever two-particle interference between a Leviton and a small sine pulse.
This groundbreaking measurement has allowed us to extract the diagonal terms of the Leviton's energy density matrix, providing crucial insights into its quantum properties.
Building upon this achievement, we have successfully reconstructed the Wigner distribution function of the Leviton,
further enhancing our understanding of its quantum behavior and characteristics.
In a near future, we will operate this protocol under zero magnetic field conditions.
This pioneering work is currently undergoing revision for publication in Science.
Another major achievement beyond the state of the art is the first MATBG single photon detector for relatively high energy photons in the telecom wavelength.
We have recently succeeded in performing a systematic study of the interaction of the superconducting state of MATBG with individual light quanta.
We discover full destruction of the SC state upon absorption of a single infrared photon, which showcases its exceptional bolometric sensitivity.
This pioneering work has been submitted.
This groundbreaking measurement has allowed us to extract the diagonal terms of the Leviton's energy density matrix, providing crucial insights into its quantum properties.
Building upon this achievement, we have successfully reconstructed the Wigner distribution function of the Leviton,
further enhancing our understanding of its quantum behavior and characteristics.
In a near future, we will operate this protocol under zero magnetic field conditions.
This pioneering work is currently undergoing revision for publication in Science.
Another major achievement beyond the state of the art is the first MATBG single photon detector for relatively high energy photons in the telecom wavelength.
We have recently succeeded in performing a systematic study of the interaction of the superconducting state of MATBG with individual light quanta.
We discover full destruction of the SC state upon absorption of a single infrared photon, which showcases its exceptional bolometric sensitivity.
This pioneering work has been submitted.