Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Preparation for Quantum Simulation of the 1+1D O(3) Non-linear {\sigma}-Model using Cold Atoms
Anthony N. Ciavarella, S. Caspar, Hersh Singh +1 more·Nov 14, 2022
The 1+1D O(3) non-linear {\sigma}-model is a model system for future quantum lattice simulations of other asymptotically-free theories, such as non-Abelian gauge theories. We find that utilizing dimensional reduction can make efficient use of two-dim...
Expressive quantum perceptrons for quantum neuromorphic computing
Rodrigo Araiza Bravo, T. Patti, K. Najafi +2 more·Nov 14, 2022
Quantum neuromorphic computing (QNC) is a sub-field of quantum machine learning (QML) that capitalizes on inherent system dynamics. As a result, QNC can run on contemporary, noisy quantum hardware and is poised to realize challenging algorithms in th...
Assessing requirements to scale to practical quantum advantage
M. Beverland, Prakash Murali, M. Troyer +7 more·Nov 14, 2022
While quantum computers promise to solve some scientifically and commercially valuable problems thought intractable for classical machines, delivering on this promise will require a large-scale quantum machine. Understanding the impact of architectur...
Highly optimized quantum circuits synthesized via data-flow engines
P. Rakyta, G. Morse, Jakab N'adori +3 more·Nov 14, 2022
The formulation of quantum programs in terms of the fewest number of gate operations is crucial to retrieve meaningful results from the noisy quantum processors accessible these days. In this work, we demonstrate a use-case for Field Programmable Gat...
Approximating outcome probabilities of linear optical circuits
Youngrong Lim, Changhun Oh·Nov 14, 2022
Quasiprobability representations are important tools for analyzing a quantum system, such as a quantum state or a quantum circuit. In this work, we propose classical algorithms specialized for approximating outcome probabilities of a linear optical c...
A doubly stochastic matrices-based approach to optimal qubit routing
Nicola Mariella, S. Zhuk·Nov 14, 2022
Swap mapping is a quantum compiler optimization that, by introducing $$\text {SWAP}$$ SWAP gates, maps a logical quantum circuit to an equivalent physically implementable one. The physical implementability of a circuit is determined by the fulfillmen...
Time-Dependent Hamiltonian Reconstruction Using Continuous Weak Measurements
K. Siva, G. Koolstra, J. Steinmetz +9 more·Nov 14, 2022
Reconstructing the Hamiltonian of a quantum system is an essential task for characterizing and certifying quantum processors and simulators. Existing techniques either rely on projective measurements of the system before and after coherent time evolu...
An invitation to distributed quantum neural networks
Lirande Pira, C. Ferrie·Nov 14, 2022
Deep neural networks have established themselves as one of the most promising machine learning techniques. Training such models at large scales is often parallelized, giving rise to the concept of distributed deep learning. Distributed techniques are...
Four-dimensional domain decomposition for the factorization of the fermion determinant
Matteo Saccardi, L. Giusti·Nov 13, 2022
The non-local dependence of the fermion determinant on the gauge field limits our ability of simulating Quantum Chromodynamics on the lattice. Here we present a factorization of the gauge field dependence of the fermion determinant based on an overla...
Baseband Control of Superconducting Qubits with Shared Microwave Drives
Peng Zhao, Ruixia Wang, M. Hu +4 more·Nov 13, 2022
Accurate control of qubits is the central requirement for building functional quantum processors. For the current superconducting quantum processor, high-fidelity control of qubits is mainly based on independently calibrated microwave pulses, which c...
Proof-of-randomness protocol for blockchain consensus: a case of Macau algorithms
Wen-zhuo Zhang, Victor Kai·Nov 13, 2022
A proof-of-randomness (PoR) protocol is presented as a fair and low energy-cost consensus mechanism for blockchains. Each network node of a blockchain may use a true random number generator (TRNG) and hash algorism to fulfil the PoR protocol. In this...
Molecular electric dipole moments: from light to heavy molecules using a relativistic VQE algorithm
K. R. Swain, V. S. Prasannaa, K. Sugisaki +1 more·Nov 13, 2022
The quantum-classical hybrid Variational Quantum Eigensolver (VQE) algorithm is recognized to be the most suitable approach to obtain ground state energies of quantum many-body systems in the noisy intermediate scale quantum era. In this work, we ext...
CFLOBDDs: Context-Free-Language Ordered Binary Decision Diagrams
Meghana Sistla, Swarat Chaudhuri, T. Reps·Nov 13, 2022
This article presents a new compressed representation of Boolean functions, called CFLOBDDs (for Context-Free-Language Ordered Binary Decision Diagrams). They are essentially a plug-compatible alternative to BDDs (Binary Decision Diagrams), and hence...
Time complexity analysis of quantum difference methods for the multiscale transport equations
He Xiaoyang, Jin Shi, Yubei Yue·Nov 12, 2022
We investigate time complexities of finite difference methods for solving the multiscale transport equation with quantum algorithms. We find that the time complexities of both the classical treatment and quantum treatment for a standard explicit sche...
Learning-Based Sustainable Multi-User Computation Offloading for Mobile Edge-Quantum Computing
Minrui Xu, D. Niyato, Jiawen Kang +2 more·Nov 12, 2022
In this paper, a novel paradigm of mobile edgequantum computing (MEQC) is proposed, which brings quantum computing capacities to mobile edge networks that are closer to mobile users (i.e., edge devices). First, we propose an MEQC system model where m...
Two-Qutrit Quantum Algorithms on a Programmable Superconducting Processor
Tanay Roy, Ziqian Li, E. Kapit +1 more·Nov 12, 2022
Processing quantum information using quantum three-level systems or qutrits as the fundamental unit is an alternative to contemporary qubit-based architectures with the potential to provide significant computational advantages. We demonstrate a fully...
Protecting expressive circuits with a quantum error detection code
C. Self, Marcello Benedetti, D. Amaro·Nov 12, 2022
A successful quantum error correction protocol would allow quantum computers to run algorithms without suffering from the effects of noise. However, fully fault-tolerant quantum error correction is too resource intensive for existing quantum computer...
Superconductor modulation circuits for Qubit control at microwave frequencies
S. Razmkhah, A. Bozbey, P. Febvre·Nov 12, 2022
Readout and control of qubits are limiting factors in scaling quantum computers. An ideal solution is to integrate energy-efficient cryogenic circuits close to the qubits to perform control and pre-processing tasks. With orders of magnitude lower pow...
Multiparty entanglement routing in quantum networks
Vaisakh Mannalath, Anirban Pathak·Nov 12, 2022
Distributing entanglement among multiple users is a fundamental problem in quantum networks, requiring an efficient solution. In this work, a protocol is proposed for extracting maximally entangled (GHZn) states for any number of parties in quantum n...
Simulating Hamiltonian dynamics in a programmable photonic quantum processor using linear combinations of unitary operations
Yue Yu, Y. Chi, C. Zhai +3 more·Nov 12, 2022
Simulating the dynamic evolutions of physical and molecular systems in a quantum computer is of fundamental interest in many applications 1,2 . Its implementation requires efficient quantum simulation algorithms 3–12 . The Lie-Trotter-Suzuki approxima...