ABSTRACT:
Technologies operating on the basis of the quantum mechanical laws and resources such as phase coherence and entanglement are expected to revolutionize computation, communication and detector science. However, meeting the challenges of quantum technologies is not an easy task because of the need to initialize, manipulate, readout and retain the information encoded in the quantum states.
What can van der Waals (vdW) materials bring to achieve the promises of quantum technologies? To address this question, I will first survey the state-of-the-art and some outstanding problems in quantum technologies. With these applications in mind, I will then focus on the fundamental properties of the vdW materials that we may exploit to build novel quantum devices, such as single-photon detectors, quantum-noise-limited amplifiers, and superconducting qubits. Finally, I will give a brief outlook to the new opportunities ahead in the interplay of vdW materials and quantum information science.
BIOGRAPHY:
Dr Kin Chung Fong is a Scientist in Raytheon BBN Technology and an Associate of Physics Department at Harvard University. His research focuses on understanding the strongly interacting many-body phenomena and mesoscopic physics in quantum materials, and their applications to novel, high-sensitivity quantum detectors and quantum information science. Specifically, he is interested in (1) how the new paradigm of the electronic hydrodynamics modifies our conventional understandings of the electrical and thermal transport properties in condensed matter physics, and (2) its deep connection to the fundamental physics such as the chiral anomaly, anti-de Sitter/conformal field theory (AdS/CFT) bound, and quark-gluon plasma in the heavy ion collider. The material platforms of these experiments include, but not limited to, graphene, two-dimensional Van der Waals heterostructures, Dirac and Weyl semimetals, and topological materials.
REFERENCES:
- WALSH, ET. AL., “JOSEPHSON JUNCTION INFRARED SINGLE-PHOTON DETECTOR,” SCIENCE 372, 409 (2021).
- ANTONY, ET. AL. “MINIATURIZING TRANSMON QUBITS USING VAN DER WAALS MATERIALS,” NANO LETT. 21, 10122 (2021).
- G.-H. LEE, ET. AL., “GRAPHENE-BASED JOSEPHSON JUNCTION MICROWAVE BOLOMETER,” NATURE 586, 42 (2020).