85 citations · 303 across the 34 of their papers we have counts for
36 papers
Provable Quantum-Classical Separation for Continuous Gibbs Sampling
Enrico Olivucci, Mariia Sobchuk, Sehmimul Hoque +4
We prove the first quantum-classical separation for a sampling problem over a continuous domain. For a class of Gibbs states on the torus with smo…
Breaking the Curse of Dimensionality in Quantum PDE Solvers via Gevrey Regularity
Pooya Ronagh, Mariia Sobchuk, Xiaoran Li +2
We connect different degrees of smoothness of real-valued periodic functions to the number of qubits required for their high-precision Fourier-basis amplitude encodings. Our centra…
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…
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 a Utility-Scale Quantum Computer Architecture
Abdullah Khalid, Allyson Silva, Gebremedhin A. Dagnew +10
The speed of a fault-tolerant quantum computer depends in large part on the reaction time of its classical electronics, that is, the total time required by decoders and controllers…
Coherent Ising Machines: The Good, The Bad, The Ugly
Farhad Khosravi, Martin Perreault, Artur Scherer +1
Analog computing using bosonic computational states is a leading approach to surpassing the computational speed and energy limitations of von Neumann architectures. But the challen…
Towards a Cryogenic CMOS-Memristor Neural Decoder for Quantum Error Correction
Pierre-Antoine Mouny, Maher Benhouria, Victor Yon +6
This paper presents a novel approach utilizing a scalable neural decoder application-specific integrated circuit (ASIC) based on metal oxide memristors in a 180nm CMOS technology.…
Optimization of Two-Qubit Gates in Tunable-Coupler Architectures Using Single Flux Quantum Control
Boyan Torosov, Bohdan Kulchytskyy, Florian Hopfmueller +3
We present a gradient-based method to construct high-fidelity, two-qubit quantum gates in a system consisting of two transmon qubits coupled via a tunable coupler. In particular, w…
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…
Optimizing Multi-level Magic State Factories for Fault-Tolerant Quantum Architectures
Allyson Silva, Artur Scherer, Zak Webb +11
We propose a novel technique for optimizing a modular fault-tolerant quantum computing architecture, taking into account any desired space-time trade-offs between the number of phy…
Optimizing Pulse Shapes of an Echoed Conditional Displacement Gate in a Superconducting Bosonic System
Maxime Lapointe-Major, Yongchao Tang, Mehmet Canturk +1
Echoed conditional displacement (ECD) gates for bosonic systems have become the key element for real-time quantum error correction beyond the break-even point. These gates are char…
Multi-qubit Lattice Surgery Scheduling
Allyson Silva, Xiangyi Zhang, Zak Webb +7
Fault-tolerant quantum computation using two-dimensional topological quantum error correcting codes can benefit from multi-qubit long-range operations. By using simple commutation…
Bootstrapping Classical Shadows for Neural Quantum State Tomography
Wirawat Kokaew, Bohdan Kulchytskyy, Shunji Matsuura +1
We investigate the advantages of using autoregressive neural quantum states as ansatze for classical shadow tomography to improve its predictive power. We introduce a novel estimat…
Compact Pulse Schedules for High-Fidelity Single-Flux Quantum Qubit Control
Ross Shillito, Florian Hopfmueller, Bohdan Kulchytskyy +1
In the traditional approach to controlling superconducting qubits using microwave pulses, the field of pulse shaping has emerged in order to assist in the removal of leakage and in…
A Cryogenic Memristive Neural Decoder for Fault-tolerant Quantum Error Correction
Victor Yon, Frédéric Marcotte, Pierre-Antoine Mouny +6
Neural decoders for quantum error correction (QEC) rely on neural networks to classify syndromes extracted from error correction codes and find appropriate recovery operators to pr…
Stochastic Security as a Performance Metric for Quantum-enhanced Generative AI
Noah A. Crum, Leanto Sunny, Pooya Ronagh +3
Motivated by applications of quantum computers in Gibbs sampling from continuous real-valued functions, we ask whether such algorithms can provide practical advantages for machine…
Neural-Shadow Quantum State Tomography
Victor Wei, W. A. Coish, Pooya Ronagh +1
Quantum state tomography (QST) is the art of reconstructing an unknown quantum state through measurements. It is a key primitive for developing quantum technologies. Neural network…
Gibbs Sampling of Continuous Potentials on a Quantum Computer
Arsalan Motamedi, Pooya Ronagh
Gibbs sampling from continuous real-valued functions is a challenging problem of interest in machine learning. Here we leverage quantum Fourier transforms to build a quantum algori…
Non-convex Quadratic Programming Using Coherent Optical Networks
Farhad Khosravi, Ugur Yildiz, Artur Scherer +1
We investigate the possibility of solving continuous non-convex optimization problems using a network of interacting quantum optical oscillators. We propose a native encoding of co…
Mixed-Integer Programming Using a Bosonic Quantum Computer
Farhad Khosravi, Artur Scherer, Pooya Ronagh
We propose a scheme for solving mixed-integer programming problems in which the optimization problem is translated to a ground-state preparation problem on a set of bosonic quantum…
Reflection-Based Adiabatic State Preparation
Jessica Lemieux, Artur Scherer, Pooya Ronagh
We propose a circuit-model quantum algorithm for eigenpath traversal that is based on a combination of concepts from Grover's search and adiabatic quantum computation. Our algorith…
Nuwa: A Quantum Circuit Transpiler Based on a Finite-Horizon Heuristic for Placement and Routing
Shengru Ren, KaWai Chen, Navid Ghadermarzy +3
We introduce a novel transpiler for the placement and routing of quantum circuits on arbitrary target hardware architectures. We use finite-horizon, and optionally discounted, rewa…
Neural Error Mitigation of Near-Term Quantum Simulations
Elizabeth R. Bennewitz, Florian Hopfmueller, Bohdan Kulchytskyy +2
Near-term quantum computers provide a promising platform for finding ground states of quantum systems, which is an essential task in physics, chemistry, and materials science. Near…