Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,008 papers in 12 months (-3% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A Multiparty Quantum Private Equality Comparison Scheme Relying on |GHZ3⟩ States
Theodore Andronikos, Alla Sirokofskich·Jul 7, 2024
In this work, we present a new protocol that accomplishes multiparty quantum private comparison leveraging maximally entangled |GHZ3⟩ triplets. Our intention was to develop a protocol that can be readily executed by contemporary quantum computers. Th...
Simulation of temperature-dependent quantum gates in silicon quantum dots with frequency shifts
Yudai Sato, Takayuki Kawahara·Jul 7, 2024
To achieve quantum computing using semiconductor spin qubits, the spin qubits must be precisely controlled. However, unexpected noise limits this precision and prevents the implementation of error correction codes. Specifically, frequency shifts have...
Multi-strategy based quantum cost reduction of quantum boolean circuits
Taghreed Ahmed, Ahmed Younes, Islam Elkabani·Jul 5, 2024
The construction of quantum computers is based on the synthesis of low-cost quantum circuits. The quantum circuit of any Boolean function expressed in a Positive Polarity Reed-Muller (PPRM) expansion can be synthesized using Multiple-Control Toffoli ...
Efficient Simulation of Quantum Chemistry Problems in an Enlarged Basis Set
Maxine Luo, J. I. Cirac·Jul 5, 2024
We propose a quantum algorithm to simulate the dynamics in quantum chemistry problems. It is based on adding fresh qubits at each Trotter step, which enables a simpler implementation of the dynamics in the extended system. After each step, the extra ...
Numerical solution of nonlinear Schrödinger equation by a hybrid pseudospectral-variational quantum algorithm
Nikolas Köcher, Hendrik Rose, Sachin S. Bharadwaj +2 more·Jul 3, 2024
The time-dependent one-dimensional nonlinear Schrödinger equation (NLSE) is solved numerically by a hybrid pseudospectral-variational quantum algorithm that connects a pseudospectral step for the Hamiltonian term with a variational step for the nonli...
Teleporting two-qubit entanglement across 19 qubits on a superconducting quantum computer
Haiyue Kang, John F. Kam, Gary J. Mooney +1 more·Jul 3, 2024
Quantum teleportation is not merely a fascinating corollary of quantum entanglement, it also finds utility in quantum processing and circuit compilation. In this paper, we measure and track the entanglement and fidelity of two-qubit states prepared o...
Hardware-efficient variational quantum algorithm in a trapped-ion quantum computer
Jingze Zhuang, Y. Wu, L. Duan·Jul 3, 2024
We study a hardware-efficient variational quantum algorithm ansatz tailored for the trapped-ion quantum simulator, HEA-TI. We leverage programmable single-qubit rotations and global spin-spin interactions among all ions, reducing the dependence on re...
Warm Start of Variational Quantum Algorithms for Quadratic Unconstrained Binary Optimization Problems
Yahui Chai, Karl Jansen, Stefan Kühn +2 more·Jul 2, 2024
Variational Quantum Eigensolver (VQE) is widely used in near-term hardware. However, their performances remain limited by the poor trainability and are dependent on random parameter initialization. In this work, we propose a warm start method inspire...
Clifford Dressed Time-Dependent Variational Principle.
A. Mello, Alessandro Santini, Guglielmo Lami +2 more·Jul 1, 2024
We propose an enhanced time-dependent variational principle (TDVP) algorithm for matrix product states that integrates Clifford disentangling techniques to efficiently manage entanglement growth. By leveraging the Clifford group, which maps Pauli str...
Implementation of a scalable universal two-qubit quantum processor with electron and nuclear spins in a trapped ion
Ji Bian, Teng Liu, Qifeng Lao +5 more·Jul 1, 2024
Increasing the quantum information processing power with limited number of hosts is vital for achieving quantum advantage. Here we propose a novel scheme that achieves a scalable n-ion-2n-qubit quantum processor utilizing four internal levels of each...
Distributed quantum computing across an optical network link
D. Main, P. Drmota, D. P. Nadlinger +6 more·Jun 30, 2024
Distributed quantum computing (DQC) combines the computing power of multiple networked quantum processing modules, ideally enabling the execution of large quantum circuits without compromising performance or qubit connectivity1,2. Photonic networks a...
Reducing Quantum Error Correction Overhead With Versatile Flag-Sharing Syndrome Extraction Circuits
Pei-Hao Liou, Ching-Yi Lai·Jun 30, 2024
Given that quantum error correction processes are unreliable, an efficient error syndrome extraction circuit should use fewer ancillary qubits, quantum gates, and measurements while maintaining low circuit depth, to minimize the circuit area, roughly...
Quantum Thermodynamics
Patrick P. Potts·Jun 27, 2024
The theory of quantum thermodynamics investigates how the concepts of heat, work, and temperature can be carried over to the quantum realm, where fluctuations and randomness are fundamentally unavoidable. These lecture notes provide an introduction t...
QOS: A Quantum Operating System
Emmanouil Giortamis, Francisco Romão, Nathaniel Tornow +1 more·Jun 27, 2024
Quantum computers face challenges due to hardware constraints, noise errors, and heterogeneity, and face fundamental design tradeoffs between key performance metrics such as \textit{quantum fidelity} and system utilization. This substantially complic...
Unified Architecture for Quantum Lookup Tables
Shuchen Zhu, Aarthi Sundaram, Guang Hao Low·Jun 26, 2024
Quantum access to arbitrary classical data encoded in unitary black-box oracles underlies interesting data-intensive quantum algorithms, such as machine learning or electronic structure simulation. The feasibility of these applications depends crucia...
Quantum computing for corrosion-resistant materials and anti-corrosive coatings design
Nam Nguyen, Thomas W. Watts, Benjamin Link +14 more·Jun 26, 2024
Corrosion is a pervasive issue that impacts the structural integrity and performance of materials across various industries, imposing a significant economic impact globally. In fields like aerospace and defense, developing corrosion-resistant materia...
KANQAS: Kolmogorov-Arnold Network for Quantum Architecture Search
Akash Kundu, Aritra Sarkar, Abhishek Sadhu·Jun 25, 2024
Quantum architecture Search (QAS) is a promising direction for optimization and automated design of quantum circuits towards quantum advantage. Recent techniques in QAS emphasize Multi-Layer Perceptron (MLP)-based deep Q-networks. However, their inte...
YAQQ: yet another quantum quantizer design space exploration of quantum gate sets using novelty search
Aritra Sarkar, Akash Kundu, M. Steinberg +5 more·Jun 25, 2024
The standard model of quantum computation is based on quantum circuits, where the number and quality of the quantum gates composing the circuit influence the runtime and fidelity of the computation. The fidelity of the decomposition of quantum algori...
Fault-tolerant embedding of quantum circuits on hardware architectures via swap gates
S. Chiew, Ezequiel Ignacio Rodr'iguez Chiacchio, Vishal Sharma +2 more·Jun 24, 2024
In near-term quantum computing devices, connectivity between qubits remain limited by architectural constraints. A computational circuit with given connectivity requirements necessary for multi-qubit gates have to be embedded within physical hardware...
Nearly Optimal Circuit Size for Sparse Quantum State Preparation
Lvzhou Li, Jingquan Luo·Jun 23, 2024
Quantum state preparation is a fundamental and significant subroutine in quantum computing. In this paper, we conduct a systematic investigation on the circuit size (the total count of elementary gates in the circuit) for sparse quantum state prepara...