Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,012 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Randomized benchmarking with leakage errors
Yi-Hsiang Chen, Charles H. Baldwin·Jan 31, 2025
Leakage errors are unwanted transfer of population outside of a defined computational subspace and they occur in almost every platform for quantum computing. While prevalent, leakage is often overlooked when measuring and reporting the fidelity of qu...
A topological theory for qLDPC: non-Clifford gates and magic state fountain on homological product codes with constant rate and beyond the N1/3 distance barrier
Guanyu Zhu·Jan 31, 2025
We develop a topological theory for fault-tolerant quantum computation in quantum low-density parity-check (qLDPC) codes. We show that there exist hidden simplicial or CW complex structures encoding the topological data for all qLDPC and CSS codes ob...
Hierarchical generation and design of quantum codes for resource-efficient loss-tolerant quantum communications
Franceso Cesa, Tommaso Feri, A. Bassi·Jan 30, 2025
We develop novel protocols for generating loss-tolerant quantum codes; these are central for safeguarding information against qubit losses, with most crucial applications in quantum communications. Contrary to current proposals, our method enables to...
Real-time adaptation of quantum noise channel estimates
L. Daguerre, M. Sarovar·Jan 30, 2025
Estimates of noise channels for quantum gates are required for most error mitigation techniques and are desirable for informing quantum error correction decoders. These estimates can be obtained by resource-intensive off-line characterization techniq...
Direct Implementation of High-Fidelity Three-Qubit Gates for Superconducting Processor with Tunable Couplers.
Haochen Liu, Bing-Jie Chen, Jiacheng Zhang +18 more·Jan 30, 2025
Three-qubit gates can be constructed using combinations of single-qubit and two-qubit gates, making their independent realization unnecessary. However, direct implementation of three-qubit gates reduces the depth of quantum circuits, streamlines quan...
Engineering of Anyons on M5-Probes via Flux Quantization
Hisham Sati, Urs Schreiber·Jan 29, 2025
These extended lecture notes survey a novel derivation of anyonic topological order (as seen in fractional quantum Hall systems) on single magnetized M5-branes probing Seifert orbi-singularities ("geometric engineering" of anyons), which we motivate ...
Quantum circuit for exponentiation of Hamiltonians: an algorithmic description based on tensor products
G. Fleury, P. Lacomme·Jan 29, 2025
Exponentiation of Hamiltonians refers to a mathematical operation to a Hamiltonian operator, typically in the form e^(-i.t.H), where H is the Hamiltonian and t is a time parameter. This operation is fundamental in quantum mechanics, particularly to e...
Linear quantum coupler for clean bosonic control
Aniket Maiti, John W. O. Garmon, Yao Lu +3 more·Jan 29, 2025
Quantum computing with superconducting circuits relies on high-fidelity driven nonlinear processes. An ideal quantum nonlinearity would selectively activate desired coherent processes at high strength, without activating parasitic mixing products or ...
Adversarial Robustness of Partitioned Quantum Classifiers
Pouya Kananian, Hans-Arno Jacobsen·Jan 28, 2025
Adversarial robustness in quantum classifiers is a critical area of study, providing insights into their performance compared to classical models and uncovering potential advantages inherent to quantum machine learning. In the NISQ era of quantum com...
Space-Time-Coupled Qubits for Enhanced Superconducting Quantum Computing
S. Taravati·Jan 28, 2025
The pursuit of scalable and robust quantum computing necessitates innovative approaches to overcome the inherent challenges of qubit connectivity, decoherence, and susceptibility to noise and crosstalk. Conventional monochromatic qubit coupling archi...
Efficient compilation of quantum circuits using multi-qubit gates
Jonathan Nemirovsky, Maya Chuchem, Yotam Shapira·Jan 28, 2025
As quantum processors grow in scale and reliability, the need for efficient quantum gate decomposition of circuits to a set of specific available gates, becomes ever more critical. The decomposition of a particular algorithm into a sequence of these ...
Two measurement bases are asymptotically informationally complete for any pure state tomography
Tianfeng Feng, Tianqi Xiao, Yu Wang +6 more·Jan 28, 2025
One of the fundamental questions in quantum information theory is to find how many measurement bases are required to obtain the full information of a quantum state. While a minimum of four measurement bases is typically required to determine an arbit...
Crosstalk analysis in single hole-spin qubits within highly anisotropic g-tensors
Yaser Hajati, Irina Heinz, G. Burkard·Jan 27, 2025
Spin qubits based on valence band hole states are highly promising for quantum information processing due to their strong spin-orbit coupling and ultrafast operation speed. As these systems scale up, achieving high-fidelity single-qubit operations be...
Quantum binary field multiplication with subquadratic Toffoli gate count and low space-time cost
Vivien Vandaele·Jan 27, 2025
Multiplication over binary fields is a crucial operation in quantum algorithms designed to solve the discrete logarithm problem for elliptic curve defined over $GF(2^n)$. In this paper, we present an algorithm for constructing quantum circuits that p...
Reinforcement Learning for Quantum Circuit Design: Using Matrix Representations
Zhiyuan Wang, Chunlin Feng, Christopher Poon +5 more·Jan 27, 2025
Quantum computing promises advantages over classical computing. The manufacturing of quantum hardware is in the infancy stage, called the Noisy Intermediate-Scale Quantum (NISQ) era. A major challenge is automated quantum circuit design that map a qu...
Harnessing CUDA-Q’s MPS for Tensor Network Simulations of Large-Scale Quantum Circuits
Gabin Schieffer, Stefano Markidis, Ivy Bo Peng·Jan 27, 2025
Quantum computer simulators are an indispensable tool for prototyping quantum algorithms and verifying the functioning of existing quantum computer hardware. The current largest quantum computers feature more than one thousand qubits, challenging the...
Expressivity Limits of Quantum Reservoir Computing
Nils-Erik Schutte, Niclas Gotting, Hauke Muntinga +16 more·Jan 26, 2025
We investigate the fundamental expressivity limits of quantum reservoir computing (QRC) by establishing a formal connection to parametrized quantum circuit quantum machine learning (PQC-QML). We analytically prove, and numerically corroborate, that i...
QuESat: Satellite-Assisted Quantum Internet for Global-Scale Entanglement Distribution
Huayue Gu, Ruozhou Yu, Zhouyu Li +2 more·Jan 26, 2025
Entanglement distribution across remote distances is critical for many quantum applications. Currently, the de facto approach for remote entanglement distribution relies on optical fiber for on-the-ground entanglement distribution. However, the fiber...
Ion-Trap Chip Architecture Optimized for Implementation of Quantum Error-Correcting Code
Jeonghoon Lee, Hyeongjun Jeon, Taehyun Kim·Jan 25, 2025
We propose a scalable trapped-ion quantum-computing architecture that efficiently incorporates quantum error correction. The chip design exploits orthogonal qubit connectivity by assigning horizontal trap regions to transversal logical gates and vert...
Quantum Algorithms for Matrix Operations of Row Addition, Row Swapping, Trace Calculation and Transpose
Yu-Hang Liu, Yuan-hong Tao, jing-Run Lan +1 more·Jan 25, 2025
Abstract Quantum algorithms of matrix operations are of great significance in many fields in science and technology. In this paper, by leveraging multi-qubit Toffoli gates and basic single-qubit operations, the quantum algorithms of matrix operations...