Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
A Web-based Software Development Kit for Quantum Network Simulation
Stephen DiAdamo, Francesco Vista·Jul 7, 2024
Quantum network simulation is an essential step towards developing applications for quantum networks and determining minimal requirements for the network hardware. As it is with classical networking, a simulation ecosystem allows for application deve...
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...
Quantum algorithm for partial differential equations of nonconservative systems with spatially varying parameters
Yuki Sato, Hiroyuki Tezuka, R. Kondo +1 more·Jul 6, 2024
Partial differential equations (PDEs) are crucial for modeling various physical phenomena such as heat transfer, fluid flow, and electromagnetic waves. In computer-aided engineering (CAE), the ability to handle fine resolutions and large computationa...
Utilizing classical programming principles in the Intel Quantum SDK: implementation of quantum lattice Boltzmann method
Tejas Shinde, L. Budinski, Ossi Niemimäki +3 more·Jul 5, 2024
We explore the use of classical programming techniques in implementing the quantum lattice Boltzmann method in the Intel Quantum SDK—a software tool for quantum circuit creation and execution on Intel quantum hardware. As hardware access is limited, ...
Dynamic thermalization on noisy quantum hardware
Hugo Perrin, Thibault Scoquart, Andrei I. Pavlov +1 more·Jul 5, 2024
Emulating thermal observables on a digital quantum computer is essential for quantum simulation of many-body physics. However, thermalization typically requires a large system size due to incorporating a thermal bath, whilst limited resources of near...
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 ...
Evaluation of phase shifts for nonrelativistic elastic scattering using quantum computers
F. Turro, Kyle A. Wendt, S. Quaglioni +2 more·Jul 4, 2024
Simulations of scattering processes are essential in understanding the physics of our universe. Computing relevant scattering quantities from ab initio methods is extremely difficult on classical devices because of the substantial computational resou...
Deterministic entanglement swapping of W states
Sajede Harraz, Yueyan Wang, Shuang Cong·Jul 4, 2024
In this paper, we propose a deterministic entanglement swapping protocol for generating a shared three-qubit W state between two remote parties. Our method offers a reliable alternative to existing probabilistic protocols for W state entanglement swa...
A Framework for Quantum Finite-State Languages with Density Mapping
Seung-Yeop Baik, Sicheol Sung, Yo-Sub Han·Jul 3, 2024
A quantum finite-state automaton (QFA) is a theoretical model designed to simulate the evolution of a quantum system with finite memory in response to sequential input strings. We define the language of a QFA as the set of strings that lead the QFA t...
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...
Ground and excited state energy calculations of the H2 molecule using a variational quantum eigensolver algorithm on an NMR quantum simulator
Dileep Singh, Shashank G. Mehendale, Arvind +1 more·Jul 1, 2024
Variational quantum algorithms are emerging as promising candidates for near-term practical applications of quantum information processors, in the field of quantum chemistry. We implement the variational quantum eigensolver algorithm to calculate the...
Multi-target quantum compilation algorithm
Vu Tuan Hai, Nguyen Tan Viet, Jesus Urbaneja +3 more·Jul 1, 2024
Quantum compilation is the process of converting a target unitary operation into a trainable unitary represented by a quantum circuit. It has a wide range of applications, including gate optimization, quantum-assisted compiling, quantum state prepara...
Superconducting Quantum Simulation for Many-Body Physics beyond Equilibrium
Yunyan Yao, L. Xiang·Jul 1, 2024
Quantum computing is an exciting field that uses quantum principles, such as quantum superposition and entanglement, to tackle complex computational problems. Superconducting quantum circuits, based on Josephson junctions, is one of the most promisin...
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...
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...
Achieving Energetic Superiority Through System-Level Quantum Circuit Simulation
Rong Fu, Zhongling Su, Han-Sen Zhong +11 more·Jun 30, 2024
Quantum Computational Superiority boasts rapid computation and high energy efficiency. Despite recent advances in classical algorithms aimed at refuting the milestone claim of Google's sycamore, challenges remain in generating uncorrelated samples of...
Batch Entanglement Detection in Parameterized Qubit States using Classical Bandit Algorithms
K. Bharati, Vikesh Siddhu, Krishna Jagannathan·Jun 28, 2024
Entanglement is a key property of quantum states that acts as a resource for a wide range of tasks in quantum computing. Entanglement detection is a key conceptual and practical challenge. Without adaptive or joint measurements, entanglement detectio...
Integrating quantum algorithms into classical frameworks: a predictor–corrector approach using HHL
Omer Rathore, Alastair Basden, Nicholas Chancellor +1 more·Jun 28, 2024
The application of quantum algorithms to classical problems is generally accompanied by significant bottlenecks when transferring data between quantum and classical states, often negating any intrinsic quantum advantage. Here we address this challeng...
Leapfrogging Sycamore: harnessing 1432 GPUs for 7× faster quantum random circuit sampling
Xianhe Zhao, Han-Sen Zhong, Feng Pan +10 more·Jun 27, 2024
ABSTRACT Random quantum circuit sampling serves as a benchmark to demonstrate quantum computational advantage. Recent progress in classical algorithms, especially those based on tensor network methods, has significantly reduced the classical simulati...
Resilience of the surface code to error bursts
Shi Jie Samuel Tan, Christopher A. Pattison, M. McEwen +1 more·Jun 27, 2024
Quantum error correction works effectively only if the error rate of gate operations is sufficiently low. However, some rare physical mechanisms can cause a temporary increase in the error rate that affects many qubits; examples include ionizing radi...