16 papers
How to really measure operator gradients in ADAPT-VQE
Panagiotis G. Anastasiou, Nicholas J. Mayhall, Edwin Barnes +1
ADAPT-VQE is a leading variational quantum algorithm as it circumvents the choice-of-ansatz conundrum by iteratively growing compact and arbitrarily accurate problem-tailored ansä…
Ground state preparation of random all-to-all Hamiltonians using ADAPT-VQE
Sabhyata Gupta, Bharath Sambasivam, Sophia E. Economou +3
The ground state of random Hamiltonians with all-to-all interactions such as the quantum Sherrington-Kirkpatrick (SK) model and the Sachdev-Ye-Kitaev (SYK) model follow volume-law…
High-performance gates on trapped ion qubits using counterpropagating pulse-shaped laser beams
Evangelos Piliouras, Hisham Amer, Susan M. Clark +9
Highly-localized light-matter interactions are necessary for scaling trapped-ion architectures. In hyperfine qubits, counterpropagating beams generate entangling gates by coupling…
Protocol for Efficient Generation of Fusion-Based Quantum Computing Resource States from Quantum Emitters
Nishad Manohar, Arshag Danageozian, Evangelia Takou +2
Fusion-based quantum computing (FBQC) relies on a set of small, typically photonic, resource states that are fused together through Bell state measurements. The main bottleneck of…
Quantifying electron-nuclear spin entanglement dynamics in central-spin systems using one-tangles
Isabela Gnasso, Khadija Sarguroh, Dorian Gangloff +2
Optically-active solid-state systems such as self-assembled quantum dots, rare-earth ions, and color centers in diamond and SiC are promising candidates for quantum network, comput…
Dynamical error reshaping for dual-rail erasure qubits
Filippos Dakis, Shruti Puri, Sophia E. Economou +1
Erasure qubits -- qubits designed to have an error profile that is dominated by detectable leakage errors -- are a promising way to cut down the resources needed for quantum error…