Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Classical Post-processing for Unitary Block Optimization Scheme to Reduce the Effect of Noise on Optimization of Variational Quantum Eigensolvers
Xiaochuan Ding, Bryan K. Clark·Apr 29, 2024
Variational Quantum Eigensolvers (VQE) are a promising approach for finding the classically intractable ground state of a Hamiltonian. The Unitary Block Optimization Scheme (UBOS) is a state-of-the-art VQE method which works by sweeping over gates an...
Spin coupling is all you need: Encoding strong electron correlation in molecules on quantum computers
Daniel Marti-Dafcik, Hugh G. A. Burton, David P. Tew·Apr 29, 2024
The performance of quantum algorithms for eigenvalue problems, such as computing Hamiltonian spectra, depends strongly on the overlap of the initial wave function and the target eigenvector. In a basis of Slater determinants, the representation of en...
The Power of Shallow-depth Toffoli and Qudit Quantum Circuits
Alex Bredariol Grilo, Elham Kashefi, Damian Markham +1 more·Apr 28, 2024
The relevance of shallow-depth quantum circuits has recently increased, mainly due to their applicability to near-term devices. In this context, one of the main goals of quantum circuit complexity is to find problems that can be solved by shallow qua...
Multi-Stage Watermarking for Quantum Circuits
Min Yang, Xiaolong Guo, Lei Jiang·Apr 28, 2024
Quantum computing represents a burgeoning computational paradigm that significantly advances the resolution of contemporary intricate problems across various domains, including cryptography, chemistry, and machine learning. Quantum circuits tailored ...
XGSwap: eXtreme Gradient boosting Swap for Routing in NISQ Devices
Jean-Baptiste Waring, Christophe Pere, S. L. Beux·Apr 27, 2024
In the current landscape of noisy intermediate-scale quantum (NISQ) computing, the inherent noise presents significant challenges to achieving high-fidelity long-range entanglement. Furthermore, this challenge is amplified by the limited connectivity...
Optimal quantum sensing of the nonlinear bosonic interactions using Fock states
Payman Mahmoudi, Atirach Ritboon, Radim Filip·Apr 27, 2024
Nonlinear processes with individual quanta beyond bilinear interactions are essential for quantum technology with bosonic systems. Diverse coherent splitting and merging of quanta in them already manifest in the estimation of their nonlinear coupling...
Exploiting many-body localization for scalable variational quantum simulation
Chenfeng Cao, Yeqing Zhou, Swamit Tannu +2 more·Apr 26, 2024
Variational quantum algorithms (VQAs) represent a promising pathway toward achieving practical quantum advantage on near-term hardware. Despite this promise, for generic, expressive ansätze, their scalability is critically hindered by barren plateaus...
Toward a 2D Local Implementation of Quantum Low-Density Parity-Check Codes
Noah F. Berthusen, Dhruv Devulapalli, E. Schoute +4 more·Apr 26, 2024
Geometric locality is an important theoretical and practical factor for quantum low-density parity-check (qLDPC) codes that affects code performance and ease of physical realization. For device architectures restricted to two-dimensional (2D) local g...
Unconditional correctness of recent quantum algorithms for factoring and computing discrete logarithms
Cédric Pilatte·Apr 25, 2024
In 1994, Shor introduced his famous quantum algorithm to factor integers and compute discrete logarithms in polynomial time. In 2023, Regev proposed a multi-dimensional version of Shor's algorithm that requires far fewer quantum gates. His algorithm ...
QREChem: Quantum Resource Estimation Software for Chemistry Applications
Matthew Otten, Byeol Kang, Dmitry Fedorov +4 more·Apr 25, 2024
As quantum hardware continues to improve, more and more application scientists have entered the field of quantum computing. However, even with the rapid improvements in the last few years, quantum devices, especially for quantum chemistry application...
High-fidelity and Fault-tolerant Teleportation of a Logical Qubit using Transversal Gates and Lattice Surgery on a Trapped-ion Quantum Computer
C. Ryan-Anderson, N. Brown, C. Baldwin +21 more·Apr 25, 2024
Quantum state teleportation is commonly used in designs for large-scale fault-tolerant quantum computers. Using Quantinuum's H2 trapped-ion quantum processor, we implement the first demonstration of a fault-tolerant state teleportation circuit for a ...
Compiler for Distributed Quantum Computing: A Reinforcement Learning Approach
Panagiotis Promponas, Akrit Mudvari, Luca Della Chiesa +3 more·Apr 25, 2024
The practical realization of quantum programs that require large-scale qubit systems is hindered by current technological limitations. Distributed Quantum Computing (DQC) presents a viable path to scalability by interconnecting multiple Quantum Proce...
Constant-Depth Preparation of Matrix Product States with Adaptive Quantum Circuits
Kevin C. Smith, Abid Khan, Bryan K. Clark +2 more·Apr 24, 2024
Adaptive quantum circuits, which combine local unitary gates, midcircuit measurements, and feedforward operations, have recently emerged as a promising avenue for efficient state preparation, particularly on near-term quantum devices limited to shall...
Creating Entangled Logical Qubits in the Heavy-Hex Lattice with Topological Codes
Bence Het'enyi, James R. Wootton·Apr 24, 2024
Designs for quantum error correction depend strongly on the connectivity of the qubits. For solid-state qubits, the most straightforward approach is to have connectivity constrained to a planar graph. Practical considerations may also further restric...
Minimizing the Number of Teleportations in Distributed Quantum Computing Using Alloy
Ali Ebnenasir, Kieran Young·Apr 24, 2024
This paper presents a novel approach for minimizing the number of teleportations in Distributed Quantum Computing (DQC) using formal methods. Quantum teleportation plays a major role in communicating quantum information. As such, it is desirable to p...
Simulating unsteady flows on a superconducting quantum processor
Zhaoyuan Meng, Jiarun Zhong, Shibo Xu +24 more·Apr 24, 2024
Recent advancements of quantum technologies have triggered tremendous interest in exploring practical quantum advantage. The simulation of fluid dynamics, a highly challenging problem in classical physics but vital for practical applications, emerges...
A New Optimization Model for Multiple-Control Toffoli Quantum Circuit Design
Jihye Jung, Kevin Dalmeijer, P. V. Hentenryck·Apr 22, 2024
As quantum technology advances, the efficient design of quantum circuits has become an important area of research. This paper provides an introduction to the MCT quantum circuit design problem for reversible Boolean functions with the necessary backg...
Lattice Surgery for Dummies
Avimita Chatterjee, Subrata Das, Swaroop Ghosh·Apr 19, 2024
Quantum error correction (QEC) plays a crucial role in correcting noise and paving the way for fault-tolerant quantum computing. This field has seen significant advancements, with new quantum error correction codes emerging regularly to address error...
Qwerty: A Basis-Oriented Quantum Programming Language
Austin J. Adams, Sharjeel Khan, Jeffrey S. Young +1 more·Apr 19, 2024
Quantum computers have leaped from the theoretical realm into a race to large-scale implementations. This is due to the promise of revolutionary speedups, where achieving such speedup requires designing an algorithm that harnesses the structure of a ...
Tailoring Fault-Tolerance to Quantum Algorithms
Zhuangzhuang Chen, Narayanan Rengaswamy·Apr 18, 2024
The standard approach to universal fault-tolerant quantum computing is to develop a general purpose quantum error correction mechanism that can implement a universal set of logical gates fault-tolerantly. Given such a scheme, any quantum algorithm ca...