99091 20210902121944.0 doi 10.1103/PhysRevA.102.062609 sideral 122325 ART-2020-122325 eng Singh, S. Perfect state transfer on hypercubes and its implementation using superconducting qubits 2020 Access copy available to the general public Unrestricted We propose a protocol for perfect state transfer between any pair of vertices in a hypercube. Given a pair of distinct vertices in the hypercube, we determine a subhypercube that contains the pair of vertices as antipodal vertices. Then a switching process is introduced for determining the subhypercube of a memory-enhanced hypercube that facilitates perfect state transfer between the desired pair of vertices. Furthermore, we propose a physical architecture for the pretty good state transfer implementation of our switching protocol with fidelity arbitrary close to unity, using superconducting transmon qubits with tunable couplings. The switching is realized by the control over the effective coupling between the qubits resulting from the effect of ancilla qubit couplers for the graph edges. We also report an error bound on the fidelity of state transfer due to faulty implementation of our protocol. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.14 2020 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 10 / 37 = 0.27 2020 Q2 T1 OPTICS 31 / 99 = 0.313 2020 Q2 T1 1.391 2020 Atomic and Molecular Physics, and Optics 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Adhikari, B. Dutta, S. Zueco, D. Universidad de Zaragoza (orcid)0000-0003-4478-1948 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 102, 6 (2020), 062609 [9 pp] Phys. rev., A Physical Review A 2469-9926 455597 http://zaguan.unizar.es/record/99091/files/texto_completo.pdf Versión publicada 3123387 http://zaguan.unizar.es/record/99091/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:99091 articulos driver 2021-09-02-11:02:28 ARTICLE