419 citations
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6 papers · 2 filters
Diagrammatic Approach to Quantum Search
Thomas G. Wong
We introduce a simple diagrammatic approach for estimating how a randomly walking quantum particle searches on a graph in continuous-time, which involves sketching small weighted g…
Superluminal two-color light in multiple Raman gain medium
V. Kudriašov, J. Ruseckas, A. Mekys +3
We investigate theoretically the formation of two-component light with superluminal group velocity in a medium controlled by four Raman pump fields. In such an optical scheme only…
Quantum lower bound for inverting a permutation with advice
Aran Nayebi, Scott Aaronson, Aleksandrs Belovs +1
Given a random permutation as a black box and , we want to output . Supplementary to our input, we are given classical advice in the form…
Implications of quantum automata for contextuality
Jibran Rashid, Abuzer Yakaryilmaz
We construct zero-error quantum finite automata (QFAs) for promise problems which cannot be solved by bounded-error probabilistic finite automata (PFAs). Here is a summary of our r…
Quantum Attacks on Classical Proof Systems - The Hardness of Quantum Rewinding
Andris Ambainis, Ansis Rosmanis, Dominique Unruh
Quantum zero-knowledge proofs and quantum proofs of knowledge are inherently difficult to analyze because their security analysis uses rewinding. Certain cases of quantum rewinding…
Controlling the interactions of a few cold Rb Rydberg atoms by radiofrequency-assisted Förster resonances
D. B. Tretyakov, V. M. Entin, E. A. Yakshina +3
Long-range interactions between cold Rydberg atoms, which are used in many important applications, can be enhanced using Förster resonances between collective many-body states cont…