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Selection of unitary operations in quantum secret sharing protocols without entanglement
Juan Xu - Nanjing University of Aeronautics and Astronautics
Quantum secret sharing (QSS) mainly deals with the splitting and distributing of an arbitrary secret among n sharers using quantum resources. While quantum secret sharing schemes often use shared entangled states, it is also possible to define a notion of quantum secret sharing without the use of entangled states.
RAC1 Journal Club/Seminar Series
Surface Acoustic Waves in Quantum Systems
Mats Powlowski
Surface acoustic waves (SAWs) are acoustic phonons that travel along the surface of a material and have been used for a wide variety of purposes, from RF filters to acoustic cavities to biosensors.
Nonlocal games with synchronous correlations
Brad Lackey, University of Maryland
A nonlocal game with a synchronous correlation is the ideal protocol for quantum key distribution. In this work we examine analogues of Bell's inequalities for synchronous correlations. We show that unlike in the nonsynchronous case (e.g. with the CHSH inequality) there can be no quantum Bell violation among synchronous correlations with two measurement settings. However we exhibit explicit analogues of Bell's inequalities for synchronous correlation with three measurement settings and two outputs that do admit quantum violations.
Workshop on Security Proofs in QKD
This two-day workshop is an opportunity for the people working in the field to discuss and compare different approaches, our ability to reduce assumptions and together attempt to define a coherent view on security proofs, claims and assumptions in practical QKD.
PPLN-based photon pair sources toward biphoton quantum frequency
PhD Thesis Presentation
Candidate: Aimee Gunther
Quantum metrology gets real
Konrad Banaszek - Centre of New Technologies, University of Warsaw
Quantum physics holds the promise of enhanced performance in metrology and sensing by exploiting non-classical phenomena such as multiparticle interference. Specific designs for quantum-enhanced schemes need to take into account noise and imperfections present in real-life implementations.
Electrical and Computer Engineering Open House – Harnessing Quantum Technologies
A half-day open house showcasing the latest developments in topological quantum materials, superconducting quantum circuits, quantum sources and detectors.
Tsirelson's Problems and the Entanglement Breaking Rank
PhD Thesis Presentation
Candidate: Jitendra Prakash
Symmetrically-Normed Ideals and Characterizations of Absolutely Norming Operators
PhD Thesis Presentation
Candidate: Satish Pandey