201 citations · 1.9k across the 50 of their papers we have counts for
5 papers · 1 filter
Quantum search with modular variables
A. Ketterer, T. Douce, A. Keller +2
We give a dimension independent formulation of the quantum search algorithm introduced in [L. K. Grover, Phys. Rev. Lett. {\bf 79}, 325 (1997)]. This algorithm provides a quadratic…
Quantum information with modular variables
A. Ketterer, S. P. Walborn, A. Keller +2
We introduce a novel strategy, based on the use of modular variables, to encode and deterministically process quantum information using states described by continuous variables. Ou…
Quantum search with non--orthogonal entangled states
T. Douce, A. Ketterer, A. Keller +2
We propose a classical to quantum information encoding system using non--orthogonal states and apply it to the problem of searching an element in a quantum list. We show that the p…
An alternative representation for pure symmetric states of qubits and its applications to entanglement classification
A. Mandilara, T. Coudreau, A. Keller +1
We prove that the vast majority of symmetric states of qubits can be decomposed in a unique way into a superposition of spin 1/2 coherent states. For the case of two qubits, the pr…
Testing the Clauser-Horne-Shimony-Holt inequality using observables with arbitrary spectrum
A. Ketterer, A. Keller, T. Coudreau +1
The Clauser-Horne-Shimony and Holt inequality applies when measurements with binary outcomes are performed on physical systems under the assumption of local realism. Testing such i…