94 citations · 489 across the 31 of their papers we have counts for
32 papers
Universality in fidelity-based quantum metrology
Luis Aragón-Muñoz, Chryssomalis Chryssomalakos, Ana Gabriela Flores-Delgado +2
We consider the problem of identifying the quantum spin states that are the optimal sensors of a given transformation, averaged over all possible orientations of the spin system. O…
Entangling power of symmetric multiqubit systems: a geometrical approach
Eduardo Serrano-Ensástiga, Diego Morachis Galindo, Jesús A. Maytorena +1
Unitary gates with high entangling capabilities are relevant for several quantum-enhanced technologies. For symmetric multiqubit systems, such as spin states or bosonic systems, th…
Quantum metrology of rotations with mixed spin states
Eduardo Serrano-Ensástiga, Chryssomalis Chryssomalakos, John Martin
The efficiency of a quantum metrology protocol can be significantly diminished by the interaction of the system with its environment, leading to a loss of purity and, as a result,…
Speed excess and total acceleration: a kinematical approach to entanglement
C. Chryssomalakos, A. G. Flores-Delgado, E. Guzmán-González +2
We show that the concept of total variance of a spin state, defined as the average of the variances of spin projection measurements along three orthogonal axes, also gives the rota…
Curves in quantum state space, geometric phases, and the brachistophase
C. Chryssomalakos, A. G. Flores-Delgado, E. Guzmán-González +2
Given a curve in quantum spin state space, we inquire what is the relation between its geometry and the geometric phase accumulated along it. Motivated by Mukunda and Simon's resul…
Toponomic Quantum Computation
C. Chryssomalakos, L. Hanotel, E. Guzmán-González +1
Holonomic quantum computation makes use of non-abelian geometric phases, associated to the evolution of a subspace of quantum states, to encode logical gates. We identify a special…