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157 papers · 1 filter
Novel permanent magnet array geometries for scalable trapped-ion quantum computing in a laser-free entanglement architecture
Mitchell G. Peaks
A novel design is presented for a permanent magnet array to address specific challenges with scalable trapped-ion quantum computing systems. Design and optimization of this magnet…
String Diagrams for Defect-Based Surface Code Computing
Mateusz Kupper, Dominic Horsman, Chris Heunen +1
Surface codes are a popular choice for implementing fault-tolerant quantum computing. Two-qubit gates may be realised in these codes using only nearest-neighbour interactions, eith…
Trion quantum coherence in site-controlled pyramidal InGaAs quantum dots
R. A. Barcan, I. Samaras, K. Barr +3
Deterministically positioned pyramidal InGaAs quantum dots (QDs) exhibit exceptional quantum properties, making them highly promising candidates for scalable on-chip quantum inform…
Resonator-assisted quantum transduction between superconducting qubits and trapped atomic systems via Rydberg levels
Fernando L. Semião, Matthias Keller
Using a shared microwave resonator, we propose a transduction scheme between superconducting qubits and qubit states encoded in the low-lying internal levels of trapped atomic syst…
Robustness of entanglement in a non-Hermitian cavity-optomechanical system even away from exceptional points
Jia-Jia Wang, Yu-Hong He, Chang-Geng Liao +2
Quantum physics can be extended into the complex domain by considering non-Hermitian Hamiltonians that are -symmetric. These exhibit exceptional points (EPs) where th…
Quantifying High-Order Interdependencies in Entangled Quantum States
Marco Alberto Javarone, Fernando E. Rosas, Paolo Facchi +2
Here, we leverage recent advances in information theory to develop a novel method to characterise the dominant character of the high-order dependencies of quantum systems. To this…