Unlocking the frequency domain for high-dimensional quantum information processing
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Unlocking the frequency domain for high-dimensional quantum information processing
Wed, 01/03/2023 - 15:00 to 16:00
Location:
Speaker:
Meritxell Cabrejo Ponce
Affiliation:
Fraunhofer Institute for Applied Optics and Precision Engineering (IOF)
Synopsis:
This seminar will be followed by coffee and biscuits in the DB crush area.
Abstract
High-dimensional quantum states (dimension d>2), can store and process more information than standard qubits (d=2) and have proven to be more resistant to noise in quantum communication scenarios [1,2]. In particular, frequency encoded quantum information has the potential of huge parallelization and universal quantum gates with standard telecommunication devices. However, complete entanglement certification of two-photon states has only been possible for a handful of discretized frequency modes until very recently [3]. I will show methods on how to certify huge entanglement dimensionality in the frequency domain without any assumptions on the state, and further experiments to process large amounts of quantum information.
Furthermore, I will briefly show some of the activities we are doing in the Fraunhofer IOF regarding quantum communications and quantum simulation.
[1] S. Ecker et al. Physical Review X 9, 041042 (2019)
[2] V. Srivastav et al. Physical Review X 12, 041023 (2022)
[3] M. Kues et al. Nature 546, 622–626 (2017)