Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
31,204
This Month
1,213
Today
0
Research Volume
15,363 papers in 12 months (-8% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Phase transition in stabilizer entropy and efficient purity estimation
L. Leone, Salvatore F. E. Oliviero, G. Esposito +1 more·Feb 15, 2023
Stabilizer Entropy (SE) quantifies the spread of a state in the basis of Pauli operators. It is a computationally tractable measure of non-stabilizerness and thus a useful resource for quantum computation. SE can be moved around a quantum system, eff...
Discovery of atomic clock-like spin defects in simple oxides from first principles
J. Davidsson, M. Onizhuk, C. Vorwerk +1 more·Feb 15, 2023
Virtually noiseless due to the scarcity of spinful nuclei in the lattice, simple oxides hold promise as hosts of solid-state spin qubits. However, no suitable spin defect has yet been found in these systems. Using high-throughput first-principles cal...
Quantum simulation of battery materials using ionic pseudopotentials
Modjtaba Shokrian Zini, A. Delgado, R. D. Reis +4 more·Feb 15, 2023
Ionic pseudopotentials are widely used in classical simulations of materials to model the effective potential due to the nucleus and the core electrons. Modeling fewer electrons explicitly results in a reduction in the number of plane waves needed to...
All-Microwave Manipulation of Superconducting Qubits with a Fixed-Frequency Transmon Coupler.
S. Shirai, Yuta Okubo, K. Matsuura +3 more·Feb 14, 2023
All-microwave control of fixed-frequency superconducting quantum computing circuits is advantageous for minimizing the noise channels and wiring costs. Here we introduce a swap interaction between two data transmons assisted by the third-order nonlin...
Teleportation-Based Error Correction Protocol of Time–Frequency Qubit States
N. Fabre·Feb 14, 2023
We present a linear optical protocol for teleporting and correcting both temporal and frequency errors in two time–frequency qubit states. The first state is the frequency (or time-of-arrival) cat qubit, which is a single photon in a superposition of...
Optimal Hadamard Gate Count for Clifford+T Synthesis of Pauli Rotations Sequences
Vivien Vandaele, S. Martiel, S. Perdrix +1 more·Feb 14, 2023
The Clifford+T gate set is commonly used to perform universal quantum computation. In such setup the T gate is typically much more expensive to implement in a fault-tolerant way than Clifford gates. To improve the feasibility of fault-tolerant quantu...
Controlling frequency-domain Hong-Ou-Mandel interference via electromagnetically induced transparency
Zi-Yu Liu, Jiun-Shiuan Shiu, Chin-Yao Cheng +1 more·Feb 14, 2023
Hong-Ou-Mandel (HOM) interference is a compelling quantum phenomenon that demonstrates the nonclassical nature of single photons. In this study, we investigate an electromagnetically induced transparency-based double-$\Lambda$ four-wave mixing system...
Efficient qudit based scheme for photonic quantum computing
Márton Karácsony, L'aszl'o Oroszl'any, Zolt'an Zimbor'as·Feb 14, 2023
Linear optics is a promising alternative for the realization of quantum computation protocols due to the recent advancements in integrated photonic technology. In this context, usually qubit based quantum circuits are considered, however, photonic sy...
Hierarchies among genuine multipartite entangling capabilities of quantum gates
Mrinmoy Samanta, Sudipta Mondal, Samir Kumar Hazra +1 more·Feb 13, 2023
We classify quantum gates according to their capability to generate genuine multipartite entanglement (GME), using a hierarchy based on multipartite separable states. In particular, when a fixed unitary operator acts on the set of k-separable states,...
A Full-Stack View of Probabilistic Computing With p-Bits: Devices, Architectures, and Algorithms
S. Chowdhury, Andrea Grimaldi, Navid Anjum Aadit +9 more·Feb 13, 2023
The transistor celebrated its 75th birthday in 2022. The continued scaling of the transistor defined by Moore’s law continues, albeit at a slower pace. Meanwhile, computing demands and energy consumption required by modern artificial intelligence (AI...
A qubit-efficient variational selected configuration-interaction method
Daniel Yoffe, Noga Entin, A. Natan +1 more·Feb 13, 2023
Finding the ground-state energy of molecules is an important and challenging computational problem for which quantum computing can potentially find efficient solutions. The variational quantum eigensolver (VQE) is a quantum algorithm that tackles the...
Asymptotically optimal synthesis of reversible circuits
Lvzhou Li, X. Wu·Feb 13, 2023
Reversible circuits have been studied extensively and intensively, and have plenty of applications in various areas, such as digital signal processing, cryptography, and especially quantum computing. In 2003, the lower bound $\Omega(2^n n/\log n)$ fo...
Decomposition of Multi-controlled Special Unitary Single-Qubit Gates
Rafaella Vale, Thiago Melo D. Azevedo, Ismael C. S. Ara'ujo +2 more·Feb 13, 2023
Multi-controlled unitary gates have been a subject of interest in quantum computing since its inception, and are widely used in quantum algorithms. The current state-of-the-art approach to implementing n-qubit multi-controlled gates involves the use ...
Performance Analysis of a Repetition Cat Code Architecture: Computing 256-bit Elliptic Curve Logarithm in 9 Hours with 126 133 Cat Qubits.
É. Gouzien, Diego Ruiz, François-Marie Le Régent +2 more·Feb 13, 2023
Cat qubits provide appealing building blocks for quantum computing. They exhibit a tunable noise bias yielding an exponential suppression of bit flips with the average photon number and a protection against the remaining phase errors can be ensured b...
Long-Lived Particles Anomaly Detection with Parametrized Quantum Circuits
Simone Bordoni, Denis Stanev, T. Santantonio +1 more·Feb 13, 2023
We investigate the possibility to apply quantum machine learning techniques for data analysis, with particular regard to an interesting use-case in high-energy physics. We propose an anomaly detection algorithm based on a parametrized quantum circuit...
Demonstration of a quantum-classical coprocessing protocol for simulating nuclear reactions
F. Turro, T. Chistolini, A. Hashim +9 more·Feb 13, 2023
Quantum computers hold great promise for arriving at exact simulations of nuclear dynamical processes (e.g., scattering and reactions) that are paramount to the study of nuclear matter at the limit of stability and to explaining the formation of chem...
Scalable Quantum Computation of Highly Excited Eigenstates with Spectral Transforms
S. Chiew, L. Kwek·Feb 13, 2023
We propose a natural application of Quantum Linear Systems Problem (QLSP) solvers such as the HHL algorithm to efficiently prepare highly excited interior eigenstates of physical Hamiltonians in a variational and targeted manner. This is enabled by t...
Superconducting Cavity Qubit with Tens of Milliseconds Single-Photon Coherence Time
O. Milul, Barkay Guttel, Uri Goldblatt +7 more·Feb 13, 2023
Storing quantum information for an extended period of time is essential for running quantum algorithms with low errors. Currently, superconducting quantum memories have coherence times of a few milliseconds, and surpassing this performance has remain...
Autonomous error correction of a single logical qubit using two transmons
Ziqian Li, Tanay Roy, David Rodríguez Pérez +3 more·Feb 13, 2023
Large-scale quantum computers will inevitably need quantum error correction to protect information against decoherence. Traditional error correction typically requires many qubits, along with high-efficiency error syndrome measurement and real-time f...
The Subgraph Isomorphism Problem for Port Graphs and Quantum Circuits
Luca Mondada, Pablo Andr'es-Mart'inez·Feb 13, 2023
We study a variant of the subgraph isomorphism problem that is of high interest to the quantum computing community. Our results give an algorithm to perform pattern matching in quantum circuits for many patterns simultaneously, independently of the n...