Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
NISQ-Compatible Error Correction of Quantum Data Using Modified Dissipative Quantum Neural Networks
Armin Ahmadkhaniha, M. Bathaee·Nov 17, 2023
Using a dissipative quantum neural network (DQNN) accompanied by conjugate layers, we upgrade the performance of the existing quantum auto-encoder (QAE) network as a quantum denoiser of a noisy m-qubit GHZ state. Our new denoising architecture requir...
Fast algorithms for classical specifications of stabiliser states and Clifford gates
Nadish de Silva, Wilfred Salmon, Ming Yin·Nov 17, 2023
The stabiliser formalism plays a central role in quantum computing, error correction, and fault tolerance. Conversions between and verifications of different specifications of stabiliser states and Clifford gates are important components of many clas...
Quantum Counting on the Complete Bipartite Graph
G. A. Bezerra, R. Santos, Renato Portugal·Nov 17, 2023
Quantum counting is a key quantum algorithm that aims to determine the number of marked elements in a database. This algorithm is based on the quantum phase estimation algorithm and uses the evolution operator of Grover's algorithm because its non-tr...
Quantum-Assisted Simulation: A Framework for Developing Machine Learning Models in Quantum Computing
Minati Rath, Hema Date·Nov 17, 2023
Machine Learning (ML) models are trained using historical data to classify new, unseen data. However, traditional computing resources often struggle to handle the immense amount of data, commonly known as Big Data, within a reasonable time frame. Qua...
Assessing Quantum Computing Performance for Energy Optimization in a Prosumer Community
C. Mastroianni, F. Plastina, L. Scarcello +2 more·Nov 17, 2023
The efficient management of energy communities relies on the solution of the “prosumer problem”, i.e., the problem of scheduling the household loads on the basis of the user needs, the electricity prices, and the availability of local renewable energ...
Efficient multipartite entanglement purification with non-identical states
Hao Qin, Ming‐Ming Du, Xi-Yun Li +3 more·Nov 17, 2023
We present an efficient and general multipartite entanglement purification protocol (MEPP) for N-photon systems in Greenberger-Horne-Zeilinger (GHZ) states with non-identical input states. As a branch of entanglement purification, besides the cases o...
Deterministic Preparation of Optical Squeezed Cat and Gottesman-Kitaev-Preskill States.
M. Winnel, Joshua J. Guanzon, Deepesh Singh +1 more·Nov 17, 2023
Large-amplitude squeezed cat states and high-quality Gottesman-Kitaev-Preskill (GKP) states are essential for effective quantum error correction, yet their optical preparation has been hindered by challenges such as low success probabilities, small a...
Universal quantum processors in spin systems via robust local pulse sequences
Matteo Votto, Johannes Zeiher, B. Vermersch·Nov 17, 2023
We propose a protocol to realize quantum simulation and computation in spin systems with long-range interactions. Our approach relies on the local addressing of single spins with external fields parametrized by Walsh functions. This enables a mapping...
On the Pauli Spectrum of QAC0
Shivam Nadimpalli, Natalie Parham, F. Vasconcelos +1 more·Nov 16, 2023
The circuit class QAC0 was introduced by Moore (1999) as a model for constant depth quantum circuits where the gate set includes many-qubit Toffoli gates. Proving lower bounds against such circuits is a longstanding challenge in quantum circuit compl...
Realistic Runtime Analysis for Quantum Simplex Computation
S. Ammann, Maximilian Hess, Debora Ramacciotti +10 more·Nov 16, 2023
In recent years, strong expectations have been raised for the possible power of quantum computing for solving difficult optimization problems, based on theoretical, asymptotic worst-case bounds. Can we expect this to have consequences for Linear and ...
Hybrid Classical–Quantum Branch-and-Bound Algorithm for Solving Integer Linear Problems
Claudio Sanavio, Edoardo Tignone, Elisa Ercolessi·Nov 16, 2023
Quantum annealers are suited to solve several logistic optimization problems expressed in the QUBO formulation. However, the solutions proposed by the quantum annealers are generally not optimal, as thermal noise and other disturbing effects arise wh...
Towards Accurate Quantum Chemical Calculations on Noisy Quantum Computers
Naoki Iijima, Satoshi Imamura, M. Morita +4 more·Nov 16, 2023
Variational quantum eigensolver (VQE) is a hybrid quantum-classical algorithm designed for noisy intermediate-scale quantum (NISQ) computers. It is promising for quantum chemical calculations (QCC) because it can calculate the ground-state energy of ...
Observation of the non-Hermitian skin effect and Fermi skin on a digital quantum computer
Ruizhe Shen, Tianqi Chen, Bo Yang +1 more·Nov 16, 2023
Lately, the non-Hermitian skin effect (NHSE) has been demonstrated in various classical metamaterials and even ultracold atomic arrays. Yet, its interplay with many-body dynamics have never been experimentally investigated. Here, we report the observ...
Entangling gates on degenerate spin qubits dressed by a global field
I. Hansen, A. Seedhouse, S. Serrano +12 more·Nov 16, 2023
Semiconductor spin qubits represent a promising platform for future large-scale quantum computers owing to their excellent qubit performance, as well as the ability to leverage the mature semiconductor manufacturing industry for scaling up. Individua...
Quantum Computing Standards & Accounting Information Systems
Maksym Lazirko·Nov 15, 2023
Recent advancements in quantum technology threaten the cryptographic foundations of Accounting Information Systems (AIS), necessitating a transition to quantum-safe standards. This paper investigates why quantum standards fall within the purview of a...
Quantum Locally Recoverable Codes
Louis Golowich, V. Guruswami·Nov 15, 2023
Classical locally recoverable codes, which permit highly efficient recovery from localized errors as well as global recovery from larger errors, provide some of the most useful codes for distributed data storage in practice. In this paper, we initiat...
Scattering phase shifts from a quantum computer
Sanket Sharma, Thomas Papenbrock, L. Platter·Nov 15, 2023
We calculate two-body scattering phase shifts on a quantum computer using a leading order short-range effective field theory Hamiltonian. The algorithm combines the variational quantum eigensolver and the quantum subspace expansion. As an example, we...
Accurate and Honest Approximation of Correlated Qubit Noise
Setiawan F., A. Gramolin, E. Matekole +2 more·Nov 15, 2023
Accurate modeling of noise in realistic quantum processors is critical for constructing fault-tolerant quantum computers. While a full simulation of actual noisy quantum circuits provides information about correlated noise among all qubits and is the...
Identification of a natural fieldlike entanglement resource in trapped-ion chains
N. Klco, D. H. Beck·Nov 15, 2023
The electromagnetic trapping of ion chains can be regarded as a process of non-trivial entangled quantum state preparation within Hilbert spaces of the local axial motional modes. To begin uncovering properties of this entanglement resource produced ...
sQUlearn - A Python Library for Quantum Machine Learning
D. Kreplin, Moritz Willmann, Jan Schnabel +2 more·Nov 15, 2023
sQUlearn introduces a user-friendly, NISQ-ready Python library for quantum machine learning (QML), designed for seamless integration with classical machine learning tools like scikit-learn. The library's dual-layer architecture serves both QML resear...