13 papers
Breaking the Curse of Dimensionality in Quantum PDE Solvers via Gevrey Regularity
Pooya Ronagh, Mariia Sobchuk, Xiaoran Li +3
We connect different degrees of smoothness of real-valued periodic functions to the cost of preparing their high-precision Fourier-basis amplitude encodings as quantum states. Our…
Diffusion-warm sampling of the XY model enables fast thermalization at scale
Sehmimul Hoque, Roger Melko, Pooya Ronagh
We introduce a novel technique for scalable sampling of spin-system states with continuous symmetries using diffusion models. By applying our approach to the XY model, a fundamenta…
Partially Fault-Tolerant Quantum Computation for Megaquop Applications
Ming-Zhi Chung, Ali H. Z. Kavaki, Artur Scherer +14
Partially fault-tolerant quantum computing (FTQC) has recently emerged as a promising approach for the execution of megaquop-scale circuits with millions of logical operations. In…
How to Build a Quantum Supercomputer: Scaling from Hundreds to Millions of Qubits
Masoud Mohseni, Artur Scherer, K. Grace Johnson +48
In the span of four decades, quantum computation has evolved from an intellectual curiosity to a potentially realizable technology. Today, small-scale demonstrations have become po…
Optimization of High-Fidelity Single-Qubit Gates for Fluxoniums Using Single-Flux Quantum Control
Maxime Lapointe-Major, Boyan Torosov, Bohdan Kulchytskyy +1
We present a gradient-based method to construct memory-efficient, high-fidelity, single-qubit gates for fluxonium qubits. These gates are constructed using a sequence of single-flu…
Impacts of Decoder Latency on Utility-Scale Quantum Computer Architectures
Abdullah Khalid, Allyson Silva, Gebremedhin A. Dagnew +10
The speed of a fault-tolerant quantum computer is dictated by the reaction time of its classical electronics, that is, the total time required by decoders and controllers to determ…