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70 papers
Witness robustness: An operational quantifier of measurement resources via free state discrimination
Jingsong Ao, Aby Philip, Alexander Streltsov
We introduce the witness robustness of quantum measurements, a resource quantifier whose admissible noise consists of tuples of free-state witnesses rather than physical measuremen…
Quantum Resources and Performance in the Initialization-Free Bernstein-Vazirani Algorithm
Haesol Han, Alexander Streltsov, Soojoon Lee
Naseri et al. [Phys. Rev. A 106, 062429 (2022); arXiv:2205.13610] studied which quantum resources in initial states are essential for the probabilistic Bernstein-Vazirani (BV) algo…
Resourcefulness without Resource: Geometric Origins and Robustness
Jingsong Ao, Aby Philip, Alexander Streltsov
A prevailing intuition holds that quantum protocols using only free states confer no operational advantage. This intuition is contradicted by free-state discrimination gaps in whic…
Asymptotic Limits of Entanglement Transmission
Piotr Masajada, Aby Philip, Alexander Streltsov
Reliable distribution of quantum entanglement over long distances is a central challenge in quantum information science, fundamentally limited by decoherence in noisy communication…
Advantage of flexible catalysis for entanglement and quantum thermodynamics
Jingsong Ao, Aby Philip, Alexander Streltsov
Understanding the fundamental limits of state convertibility is crucial for establishing the boundaries of quantum information processing and thermodynamic efficiency. While auxili…
Optimality of universal conclusive entanglement concentration protocols
Alexandre C. Orthey, Aby Philip, Tulja Varun Kondra +1
Entanglement concentration is essential for quantum technologies, yet rigorous bounds on the success probability for universal protocols (those requiring no prior knowledge about t…