204 citations · 374 across the 5 of their papers we have counts for
5 papers
Quantum Data Bus in Dipolar Coupled Nuclear Spin Qubits
Jingfu Zhang, Michael Ditty, Daniel Burgarth +6
We implement an iterative quantum state transfer exploiting the natural dipolar couplings in a spin chain of a liquid crystal NMR system. During each iteration a finite part of the…
Direct observation of quantum criticality in Ising spin chains
Jingfu Zhang, Fernando M. Cucchietti, C. M. Chandrashekar +6
We use NMR quantum simulators to study antiferromagnetic Ising spin chains undergoing quantum phase transitions. Taking advantage of the sensitivity of the systems near criticality…
Fidelity enhancement by logical qubit encoding
Michael K. Henry, Chandrasekhar Ramanathan, Jonathan S. Hodges +4
We demonstrate coherent control of two logical qubits encoded in a decoherence free subspace (DFS) of four dipolar-coupled protons in an NMR quantum information processor. A pseudo…
Using error correction to determine the noise model
M. Laforest, D. Simon, J. -C. Boileau +3
Quantum error correcting codes have been shown to have the ability of making quantum information resilient against noise. Here we show that we can use quantum error correcting code…
Benchmarking quantum control methods on a 12-qubit system
C. Negrevergne, T. S. Mahesh, C. A. Ryan +7
In this letter, we present an experimental benchmark of operational control methods in quantum information processors extended up to 12 qubits. We implement universal control of th…