Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hybrid quantum programming with PennyLane Lightning on HPC platforms
Ali Asadi, Amintor Dusko, Chae-Yeun Park +5 more·Mar 4, 2024
We introduce PennyLane's Lightning suite, a collection of high-performance state-vector simulators targeting CPU, GPU, and HPC-native architectures and workloads. Quantum applications such as QAOA, VQE, and synthetic workloads are implemented to demo...
Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits
G. Huber, F. Roy, L. Koch +20 more·Mar 4, 2024
As systems for quantum computing keep growing in size and number of qubits, challenges in scaling the control capabilities are becoming increasingly relevant. Efficient schemes to simultaneously mediate coherent interactions between multiple quantum ...
Bell correlations of a thermal fully connected spin chain in the vicinity of a quantum critical point
Danish Ali Hamza, Jan Chwede'nczuk·Mar 4, 2024
Bell correlations are among the most exotic phenomena through which quantum mechanics manifests itself. Their presence signals that the system can violate the postulates of local realism, once believed to be the nonnegotiable property of the physical...
Relational bulk reconstruction from modular flow
Onkar Parrikar, Harshit Rajgadia, Vivek Singh +1 more·Mar 4, 2024
The entanglement wedge reconstruction paradigm in AdS/CFT states that for a bulk qudit within the entanglement wedge of a boundary subregion A¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{a...
Recovering Quantum Coherence of a Cavity Qubit Coupled to a Noisy Ancilla through Real-Time Feedback
Uri Goldblatt, Nitzan Kahn, Sergey Hazanov +6 more·Mar 4, 2024
Decoherence in qubits, caused by their interaction with a noisy environment, poses a significant challenge to the development of reliable quantum processors. A prominent source of errors arises from noise in coupled ancillas, which can quickly spread...
Empirical learning of dynamical decoupling on quantum processors
Christopher Tong, Helena Zhang, Bibek Pokharel·Mar 4, 2024
Dynamical decoupling (DD) is a low-overhead method for quantum error suppression. Despite extensive work in DD design, finding pulse sequences that optimally decouple computational qubits on noisy quantum hardware is not well understood. In this work...
Diagonal operator decomposition on restricted topologies via enumeration of quantum state subsets
Jan Tułowiecki, Lukasz Czerwi'nski, Konrad Deka +3 more·Mar 4, 2024
Various quantum algorithms require usage of arbitrary diagonal operators as subroutines. For their execution on a physical hardware, those operators must be first decomposed into target device's native gateset and its qubit connectivity for entanglin...
Quantum dynamical Hamiltonian Monte Carlo
Owen Lockwood, P. Weiss, Filip Aronshtein +1 more·Mar 4, 2024
One of the open challenges in quantum computing is to find meaningful and practical methods to leverage quantum computation to accelerate classical machine-learning workflows. A ubiquitous problem in machine-learning workflows is sampling from probab...
Classification of the Fashion-MNIST Dataset on a Quantum Computer
Kevin Shen, B. Jobst, Elvira Shishenina +1 more·Mar 4, 2024
The potential impact of quantum machine learning algorithms on industrial applications remains an exciting open question. Conventional methods for encoding classical data into quantum computers are not only too costly for a potential quantum advantag...
Advancing quantum networking: some tools and protocols for ideal and noisy photonic systems
J. Saied, Jeffrey Marshall, Namit Anand +2 more·Mar 4, 2024
Quantum networking at many scales will be critical to future quantum technologies and experiments on quantum systems. Photonic links enable quantum networking. They will connect co-located quantum processors to enable large-scale quantum computers, p...
Strategies and trade-offs for controllability and memory time of ultra-high-quality microwave cavities in circuit QED
I. Pietikainen, Ondvrej vCernot'ik, A. Eickbusch +4 more·Mar 4, 2024
Three-dimensional microwave cavity resonators have been shown to reach lifetimes of the order of a second by maximizing the cavity volume relative to its surface, using better materials, and improving surface treatments. Such cavities represent an id...
Quantum Frequential Computing: a quadratic runtime advantage for all computations
M. P. Woods·Mar 4, 2024
An enduring challenge in computer science is reducing the runtime required to solve computational problems. Quantum computing has attracted significant attention due to its potential to deliver asymptotically faster solutions to certain problems comp...
Fault-tolerant Quantum Error Correction Using a Linear Array of Emitters
Jintae Kim, Jung Hoon Han, Isaac H. Kim·Mar 3, 2024
We propose a fault-tolerant quantum error correction architecture consisting of a linear array of emitters and delay lines. In our scheme, a resource state for fault-tolerant quantum computation is generated by letting the emitters interact with a st...
Maximum Length RLL Sequences in de Bruijn Graph
Y. Chee, T. Etzion, Tien Long Nguyen +3 more·Mar 3, 2024
Free-space quantum key distribution requires to synchronize the transmitted and received signals. A timing and synchronization system for this purpose based on a de Bruijn sequence has been proposed and studied recently for a channel associated with ...
Spatially parallel decoding for multi-qubit lattice surgery
Sophia Fuhui Lin, Eric C. Peterson, Krishanu Sankar +1 more·Mar 3, 2024
Running quantum algorithms protected by quantum error correction requires a real time, classical decoder. To prevent the accumulation of a backlog, this decoder must process syndromes from the quantum device at a faster rate than they are generated. ...
Boosting the Efficiency of Quantum Divider through Effective Design Space Exploration
Siyi Wang, Eugene Lim, Anupam Chattopadhyay·Mar 2, 2024
Rapid progress in the design of scalable, robust quantum computing necessitates efficient quantum circuit implementation for algorithms with practical relevance. For several algorithms, arithmetic kernels, in particular, division plays an important r...
Advanced CMOS manufacturing of superconducting qubits on 300 mm wafers
J. V. Damme, S. Massar, R. Acharya +13 more·Mar 2, 2024
The development of superconducting qubit technology has shown great potential for the construction of practical quantum computers1,2. As the complexity of quantum processors continues to grow, the need for stringent fabrication tolerances becomes inc...
Efficient Algorithm-Level Error Detection for Number-Theoretic Transform Used for Kyber Assessed on FPGAs and ARM
Kasra Ahmadi, S. Aghapour, Mehran Mozaffari Kermani +1 more·Mar 2, 2024
Polynomial multiplication stands out as a highly demanding arithmetic process in the development of post-quantum cryptosystems. The importance of the number-theoretic transform (NTT) extends beyond post-quantum cryptosystems, proving valuable in enha...
A Novel Quantum Algorithm for Ant Colony Optimization
Qian Qiu, Mohan Wu, Qichun Sun +2 more·Mar 1, 2024
Quantum ant colony optimization (QACO) has drew much attention since it combines the advantages of quantum computing and ant colony optimization (ACO) algorithms and overcomes some limitations of the traditional ACO algorithm. However, due to the har...
Hardware-Efficient Bosonic Quantum Computing with Photon-loss Detection Capability
Yuichiro Mori, Yuichiro Matsuzaki, Suguru Endo +1 more·Mar 1, 2024
Bosonic quantum systems offer the hardware-efficient construction of error detection/error correction codes by using the infinitely large Hilbert space. However, due to the encoding, arbitrary gate rotations usually require magic state teleportation ...