774 citations
- Helsinki Institute of PhysicsFI5 papers
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9 papers · 1 filter
Generalized partial measurements
G. S. Paraoanu
We introduce a type of measurements that generalize the so-called "partial measurements" performed in recent years with phase qubits. While in the case of partial measurements it h…
A quantum no-reflection theorem and the speeding up of Grover's search algorithm
Karthikeyan S. Kumar, G. S. Paraoanu
We prove that it is impossible to built a universal quantum machine that produces reflections about an unknown state. We then point out a connection between this result and the opt…
Partial measurements and the realization of quantum-mechanical counterfactuals
G. S. Paraoanu
We propose partial measurements as a conceptual tool to understand how to operate with counterfactual claims in quantum physics. Indeed, unlike standard von Neumann measurements, p…
Geometric quantum gates with superconducting qubits
I. Kamleitner, P. Solinas, C. Müller +2
We suggest a scheme to implement a universal set of non-Abelian geometric transformations for a single logical qubit composed of three superconducting transmon qubits coupled to a…
Realism and single-quanta nonlocality
G. S. Paraoanu
We show that local realism applied to states characterized by a single quanta equally and coherently shared between a number of qubits (so-called W states) produces predictions inc…
Categorical Quantum Circuits
Ville Bergholm, Jacob D. Biamonte
In this paper, we extend past work done on the application of the mathematics of category theory to quantum information science. Specifically, we present a realization of a dagger-…