Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Optimized Quantum Autoencoder
Yibin Huang, Muchun Yang, D. L. Zhou·Apr 12, 2024
Quantum autoencoder (QAE) compresses a bipartite quantum state into its subsystem using a self-checking mechanism. How to characterize and minimize the lost information in this process is essential for understanding the compression mechanism of QAE. ...
Quantum molecular docking with quantum-inspired algorithm
Yunting Li, Xiaopeng Cui, Zhaoping Xiong +5 more·Apr 12, 2024
Molecular docking (MD) is a crucial task in drug design, which predicts the position, orientation, and conformation of the ligand when bound to a target protein. It can be interpreted as a combinatorial optimization problem, where quantum annealing (...
Enhancing Initial State Overlap through Orbital Optimization for Faster Molecular Electronic Ground-State Energy Estimation.
Pauline J. Ollitrault, Cristian L. Cortes, Jérôme F. Gonthier +7 more·Apr 12, 2024
The phase estimation algorithm is crucial for computing the ground-state energy of a molecular electronic Hamiltonian on a quantum computer. Its efficiency depends on the overlap between the Hamiltonian's ground state and an initial state, which tend...
Evaluation framework for quantum security risk assessment: A comprehensive strategy for quantum-safe transition
Yaser Baseri, Vikas Chouhan, Ali Ghorbani +1 more·Apr 12, 2024
The rise of large-scale quantum computing poses a significant threat to traditional cryptographic security measures. Quantum attacks undermine current asymmetric cryptographic algorithms, rendering them ineffective. Even symmetric key cryptography is...
Benchmarking logical three-qubit quantum Fourier transform encoded in the Steane code on a trapped-ion quantum computer
K. Mayer, C. Ryan-Anderson, N. Brown +20 more·Apr 12, 2024
We implement logically encoded three-qubit circuits for the quantum Fourier transform (QFT), using the [[7,1,3]] Steane code, and benchmark the circuits on the Quantinuum H2-1 trapped-ion quantum computer. The circuits require multiple logical two-qu...
Entanglement determination with a deep multiscale entanglement renormalization ansatz
Kushagra Garg, Zeeshan Ahmed, Andreas Thomasen·Apr 12, 2024
We study the deep multi-scale entanglement renormalization ansatz (DMERA) on quantum hardware and the causal cone of a subset of the qubits which make up the ansatz. This causal cone spans $O(M+\log{N})$ physical qubits on a quantum device, where $M$...
A Lightweight Protocol for Matchgate Fidelity Estimation
Jędrzej Burkat, Sergii Strelchuk·Apr 11, 2024
We present a low-depth randomised algorithm for the estimation of entanglement fidelity between an $n$-qubit matchgate circuit $\mathcal{U}$ and its noisy implementation $\mathcal{E}$. Our procedure makes use of a modified Pauli-Liouville representat...
Quantum computation in fermionic thermal field theories
Wenyang Qian, Bin Wu·Apr 11, 2024
Thermal properties of quantum fields at finite temperature are crucial to understanding strongly interacting matter and recent development in quantum computing has provided an alternative and promising avenue of study. In this work, we study thermal ...
On Reducing the Execution Latency of Superconducting Quantum Processors via Quantum Job Scheduling
Wenjie Wu, Yiquan Wang, G. Yan +3 more·Apr 11, 2024
Quantum computing has gained considerable attention, especially after the arrival of the Noisy Intermediate-Scale Quantum (NISQ) era. Quantum processors and cloud services have been made worldwide increasingly available. Unfortunately, jobs on existi...
Hyperpolarisation Dynamics: Asymptotic Polarisation
O. T. Whaites, T. S. Monteiro·Apr 11, 2024
For applications of solid state quantum computing and quantum simulations, high fidelity initialisation of thermally mixed electronic and nuclear spin qubits is essential. Whereas electronic spins can readily be initialised optically to high fidelity...
Benchmarking Digital Quantum Simulations Above Hundreds of Qubits Using Quantum Critical Dynamics
Alexander Miessen, Daniel J. Egger, I. Tavernelli +1 more·Apr 11, 2024
The real-time simulation of large many-body quantum systems is a formidable task, that may only be achievable with a genuine quantum computational platform. Currently, quantum hardware with a number of qubits sufficient to make classical emulation ch...
Quantum Multigrid Algorithm for Finite Element Problems
O. M. Raisuddin, Suvranu De·Apr 11, 2024
Quantum linear system algorithms (QLSAs) can provide exponential speedups for the solution of linear systems, but the growth of the condition number for finite element problems can eliminate the exponential speedup. QLSAs are also incapable of using ...
Classical simulation and quantum resource theory of non-Gaussian optics
Oliver Hahn, Ryuji Takagi, Giulia Ferrini +1 more·Apr 10, 2024
We propose efficient algorithms for classically simulating Gaussian unitaries and measurements applied to non-Gaussian initial states. The constructions are based on decomposing the non-Gaussian states into linear combinations of Gaussian states. We ...
Cross-platform certification of the qubit space with a minimal number of parameters
Tomasz Rybotycki, Tomasz Białecki, Josep Batle +2 more·Apr 10, 2024
We demonstrate a determinant dimension witness of a qubit space. Our test has a minimal number of independent parameters. We achieve it by mapping the Bloch sphere $π/2$-rotation axis angle on the non-planar so-called Viviani curve. We ran our test o...
On the coherent extension of some Fano-type learning bounds
Evan Peters·Apr 10, 2024
Information theory provides tools to predict the performance of a learning algorithm on a given dataset. For instance, the accuracy of learning an unknown parameter can be upper bounded by reducing the learning task to hypothesis testing for a discre...
Efficient Post-Quantum Secured Blind Computation
Ethan Davies, Alastair Kay·Apr 10, 2024
In the medium term, quantum computing must tackle two key challenges: fault tolerance and security. Fault tolerance will be solved with sufficiently high quality experiments on large numbers of qubits, but the scale and complexity of these devices me...
Edge Detection Quantumized: A Novel Quantum Algorithm For Image Processing
Syed Emad Uddin Shubha, Mir Muzahedul Islam, Tanvir Ahahmed Sadi +2 more·Apr 10, 2024
Quantum image processing is a research field that explores the use of quantum computing and algorithms for image processing tasks such as image encoding and edge detection. Although classical edge detection algorithms perform reasonably well and are ...
Variational quantum Crank-Nicolson and method-of-lines schemes for the solution of initial value problems
Francisco Guzman-Cajica, Francisco S. Guzman·Apr 10, 2024
In this paper we use a Variational Quantum Algorithm to solve Initial Value Problems with the Implicit Crank-Nicolson and the Method of Lines (MoL) evolution schemes. The unknown functions use a spectral decomposition with the Fourier basis. The exam...
Unlocking Quantum Optimization: A Use Case Study on NISQ Systems
Andreas Sturm, B. Mummaneni, Leon Rullkotter·Apr 10, 2024
The major advances in quantum computing over the last few decades have sparked great interest in applying it to solve the most challenging computational problems in a wide variety of areas. One of the most pronounced domains here are optimization pro...
Quantum algorithms to simulate quadratic classical Hamiltonians and optimal control
H. Krovi·Apr 10, 2024
Simulation of realistic classical mechanical systems is of great importance to many areas of engineering such as robotics, dynamics of rotating machinery and control theory. In this work, we develop quantum algorithms to estimate quantities of intere...