Andrew Lucas

1 month ago | agupubs.onlinelibrary.wiley.com | Erica L. Green |Samuel Kelly |Andrew Lucas

1 Introduction Surface winds impart momentum into the ocean's surface layer, driving horizontal currents. Once in motion, the Coriolis effect deflects these currents to the right (left) in the Northern (Southern) Hemisphere. Steady winds create currents perpendicular to the wind, as described by Ekman (1905). Impulsive winds set currents in motion that continue to deflect due to the Coriolis effect, turning in circles called inertial oscillations (IOs).

Aug 8, 2024 | link.aps.org | Yifan Hong |Matteo Marinelli |Adam Kaufman |Andrew Lucas

The surface code is a quantum error-correcting code for one logical qubit, protected by spatially localized parity checks in two dimensions. Due to fundamental constraints from spatial locality, storing more logical qubits requires either sacrificing the robustness of the surface code against errors or increasing the number of physical qubits.

May 10, 2024 | link.aps.org | Chao Yin |Andrew Lucas |David Stephen

We bound the time necessary to implement the shift unitary on a one-dimensional ring, both by using local Hamiltonians and those with power-law interactions. This time is constrained by the Frobenius light cone; hence we prove that (for certain power-law exponents) shift unitaries cannot be implemented in the same amount of time needed to prepare long-range Bell pairs.

Feb 29, 2024 | agupubs.onlinelibrary.wiley.com | Taylor Mckie |Andrew Lucas |Jennifer MacKinnon

1 Introduction The spatiotemporal variability of sea surface temperature (SST) in the Bay of Bengal (BoB) influences the atmospheric convection that drives the southwest monsoon (Schott et al., 2009; Sengupta et al., 2016; Vecchi & Harrison, 2002; Vinayachandran et al., 2002).

Aug 3, 2023 | link.aps.org | Chao Yin |Andrew Lucas

Abstract We prove that prethermalization is a generic property of gapped local many-body quantum systems, subjected to small perturbations, in any spatial dimension. More precisely, let H0 be a Hamiltonian, spatially local in d spatial dimensions, with a gap Δ in the many-body spectrum; let V be a spatially local Hamiltonian consisting of a sum of local terms, each of which is bounded by ε≪Δ.