Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
End-to-end switchless architecture for fault-tolerant photonic quantum computing
Paul Renault, Patrick Yard, Raphael C. Pooser +2 more·Dec 17, 2024
Photonics represents one of the most promising approaches to large-scale quantum computation with millions of qubits and billions of gates, owing to the potential for room-temperature operation, high clock speeds, miniaturization of photonic circuits...
Simulating imperfect quantum optical circuits using unsymmetrized bases
J. Steinmetz, Maike Ostmann, Alex Neville +2 more·Dec 17, 2024
Fault-tolerant photonic quantum computing requires the generation of large entangled resource states. The required size of these states makes it challenging to simulate the effects of errors such as loss and partial distinguishability. For an interfe...
Minimizing resource overhead in fusion-based quantum computation using hybrid spin-photon devices
Stephen C. Wein, Timothée Goubault de Brugière, Luka Music +3 more·Dec 11, 2024
We present three schemes for constructing a (2,2)-Shor-encoded 6-ring photonic resource state for fusion-based quantum computing, each relying on a different type of photon source. We benchmark these architectures by analyzing their ability to achiev...
AC/DC: Automated Compilation for Dynamic Circuits
Siyuan Niu, Efekan Kokcu, Anupam Mitra +6 more·Dec 10, 2024
Dynamic quantum circuits incorporate mid-circuit measurements and feed-forward operations originally intended to realize Quantum Error Correction. This paradigm has recently been utilized to prepare certain states and long-range entangling gates as w...
Development of neural network-based optimal control pulse generator for quantum logic gates using the GRAPE algorithm in NMR quantum computer
Ebrahim Khaleghian, Arash Fath Lipaei, A. Bahrampour +2 more·Dec 8, 2024
In this paper, we introduce a neural network to generate optimal control pulses for general single-qubit quantum logic gates, within a Nuclear Magnetic Resonance (NMR) quantum computer. By utilizing a neural network, we can efficiently implement any ...
Generating graph states with a single quantum emitter and the minimum number of fusions
M. C. Löbl, Love A. Pettersson, Andrew Jena +3 more·Dec 5, 2024
Graph states are the key resources for measurement- and fusion-based quantum computing with photons, yet their creation is experimentally challenging. We optimize a hybrid graph-state generation scheme using a single quantum emitter and linear optics...
GQWformer: A Quantum-based Transformer for Graph Representation Learning
Lei Yu, Hongyang Chen, Jingsong Lv +1 more·Dec 3, 2024
Graph Transformers (GTs) have demonstrated significant advantages in graph representation learning through their global attention mechanisms. However, the self-attention mechanism in GTs tends to neglect the inductive biases inherent in graph structu...
Feasibility of Logical Bell State Generation in Memory-Assisted Quantum Networks
Vladlen Galetsky, Nilesh Vyas, A. Comin +1 more·Dec 2, 2024
This study explores the feasibility of utilizing quantum error correction (QEC) to generate and store logical Bell states in heralded quantum entanglement protocols, crucial for quantum repeater networks. Two lattice surgery-based protocols (local an...
Mixed-State Quantum Denoising Diffusion Probabilistic Model
Gino Kwun, Bingzhi Zhang, Quntao Zhuang·Nov 26, 2024
Generative quantum machine learning has gained significant attention for its ability to produce quantum states with desired distributions. Among various quantum generative models, quantum denoising diffusion probabilistic models (QuDDPMs) [Phys. Rev....
Enhancing Quantum Diffusion Models with Pairwise Bell State Entanglement
Shivalee Shah, M. Vatsa·Nov 24, 2024
This paper introduces a novel quantum diffusion model designed for Noisy Intermediate-Scale Quantum (NISQ) devices. Unlike previous methods, this model efficiently processes higher-dimensional images with complex pixel structures, even on qubit-limit...
Chip-to-chip quantum photonic controlled-NOT gate teleportation
Lantian Feng, Ming Zhang, Di Liu +7 more·Nov 23, 2024
Quantum networks provide a novel framework for quantum information processing, significantly enhancing system capacity through the interconnection of modular quantum nodes. Beyond the capability to distribute quantum states, the ability to remotely c...
Constructing multipartite planar maximally entangled states from phase states and quantum secret sharing protocol
Lahoucine Bouhouch, Yassine Dakir, A. Slaoui +1 more·Nov 22, 2024
In this paper, we explore the construction of planar maximally entangled (PME) states from phase states. PME states form a class of n-partite states in which any subset of adjacent particles whose size is less than or equal to half the total number o...
Achieving Computational Gains with Quantum Error-Correction Primitives: Generation of Long-Range Entanglement Enhanced by Error Detection
Haoran Liao, Gavin Hartnett, A. Kakkar +5 more·Nov 22, 2024
The resource overhead required to achieve net computational benefits from quantum error correction (QEC) limits its utility while current systems remain constrained in size, despite exceptional progress in experimental demonstrations. In this paper, ...
Cooperative quantum interface for noise mitigation in quantum networks
Yan‐Lei Zhang, Ming Li, Xin-Biao Xu +5 more·Nov 20, 2024
Quantum frequency converters that enable the interface between the itinerant photons and qubits are indispensable for realizing long-distance quantum network. However, the cascaded connection between converters and qubits usually brings additional in...
Quantum teleportation with dissimilar quantum dots over a hybrid quantum network
Alessandro Laneve, G. Ronco, Mattia Beccaceci +24 more·Nov 19, 2024
Photonic quantum information processing in metropolitan quantum networks lays the foundation for cloud quantum computing [1, 2], secure communication [3, 4], and the realization of a global quantum internet [5, 6]. This paradigm shift requires on-dem...
Thermodynamic limitations on fault-tolerant quantum computing
Mykhailo Bilokur, Sarang Gopalakrishnan, Shayan Majidy·Nov 19, 2024
We investigate the thermodynamic limits on scaling fault-tolerant quantum computers due to heating from quantum error correction (QEC). Quantum computers require error correction, which accounts for 99.9% of the qubit demand and generates heat throug...
Validation tests of Gaussian boson samplers with photon-number resolving detectors
A. Dellios, M. Reid, Peter D Drummond·Nov 17, 2024
An important challenge with the current generation of noisy, large-scale quantum computers is the question of validation. Does the hardware generate correct answers? If not, what are the errors? This issue is often combined with questions of computat...
Nonlinear protocol for high-dimensional quantum teleportation
Luca Bianchi, Carlo Marconi, Giulia Guarda +1 more·Nov 14, 2024
Bell measurements, which allow entanglement between uncorrelated distant particles, play a central role in quantum communication. Indeed sharing, measuring and creating entanglement lie at the core of various protocols, such as entanglement swapping ...
Routing Algorithm Within the Multiple Non-Overlapping Paths’ Approach for Quantum Key Distribution Networks
E. Kiktenko, A. Tayduganov, Aleksey K. Fedorov·Nov 12, 2024
We develop a novel key routing algorithm for quantum key distribution (QKD) networks that utilizes a distribution of keys between remote nodes, i.e., not directly connected by a QKD link, through multiple non-overlapping paths. This approach focuses ...
A cat qubit stabilization scheme using a voltage biased Josephson junction
Thiziri Aissaoui, A. Murani, R. Lescanne +1 more·Nov 12, 2024
DC-voltage-biased Josephson junctions have been recently employed in superconducting circuits for Hamiltonian engineering, demonstrating microwave amplification, single photon sources and entangled photon generation. Compared to more conventional app...