Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Optimization complexity and resource minimization of emitter-based photonic graph state generation protocols
E. Takou, Edwin Barnes, S. Economou·Jul 22, 2024
Photonic graph states are important for measurement- and fusion-based quantum computing, quantum networks, and sensing. They can in principle be generated deterministically by using emitters to create the requisite entanglement. Finding ways to minim...
Entangled Photon-Pair Emission in Waveguide Circuit QED from a Cooper Pair Splitter
M. Governale, C. Schönenberger, P. Scarlino +1 more·Jul 21, 2024
As a waveguide circuit QED architecture, we investigate theoretically the single-photon pair emission of a Cooper pair splitter composed of two double quantum dots, each coupled to a microwave transmission line. We find that this system can generate ...
Hardware-efficient stabilization of entanglement via engineered dissipation in superconducting circuits
Changling Chen, Kai Tang, Yuxuan Zhou +8 more·Jul 18, 2024
Generation and preservation of quantum entanglement are among the primary tasks in quantum information processing. State stabilization via quantum bath engineering offers a resource-efficient approach to achieve this objective. However, current metho...
Unruh-DeWitt Quantum Computing: Realizing Quantum Shannon Theory With Quantum Fields
Eric W. Aspling·Jul 18, 2024
Qubit-field quantum transduction provides numerous advantages to quantum computing, such as device-specific error-correcting codes, efficient scalability, and effective entanglement generation. An all-to-all connected bus of qubits implanted around t...
Conditional diffusion-based parameter generation for quantum approximate optimization algorithm
Fanxu Meng, Xiang-Yu Zhou, Pengcheng Zhu +1 more·Jul 17, 2024
The Quantum Approximate Optimization Algorithm (QAOA) is a hybrid quantum-classical algorithm that shows promise in efficiently solving the Max-Cut problem, a representative example of combinatorial optimization. However, its effectiveness heavily de...
A primary quantum current standard based on the Josephson and the quantum Hall effects
S. Djordjevic, Ralf Behr, Wilfrid Poirier·Jul 17, 2024
The new definition of the ampere calls for a quantum current standard able to deliver a flow of elementary charges, e, controlled with a relative uncertainty of 10−8. Despite many efforts, nanodevices handling electrons one by one have never demonstr...
DisQ: A Model of Distributed Quantum Processors (Extended Version)
Le Chang, Saitej Yavvari, Rance Cleaveland +3 more·Jul 12, 2024
The next generation of distributed quantum processors combines single-location quantum computing and quantum networking techniques to permit large entangled qubit groups to be established through remote processors, and quantum algorithms can be execu...
A novel quantum realization of jet clustering in high-energy physics experiments.
Yongfeng Zhu, Weifeng Zhuang, Chen Qian +4 more·Jul 12, 2024
Exploring the application of quantum technologies to fundamental sciences holds the key to fostering innovation for both sides. In high-energy particle collisions, quarks and gluons are produced and immediately form collimated particle sprays known a...
Scalable Improvement of the Generalized Toffoli Gate Realization Using Trapped-Ion-Based Qutrits.
Anastasiia S. Nikolaeva, I. Zalivako, A. Borisenko +8 more·Jul 10, 2024
An efficient implementation of the Toffoli gate is of conceptual importance for running various quantum algorithms, including Grover's search and Shor's integer factorization. However, direct implementation of the Toffoli gate either entails a prohib...
Characterization and generation of a SQL-beating catlike state through repetitive measurements
Mamiko Tatsuta, Yuichiro Matsuzaki, Hiroki Kuji +2 more·Jul 9, 2024
Sensitivity in metrology without entanglement is limited by the standard quantum limit (SQL). Recent studies have found that the Heisenberg-limited scaling, the ultimate sensitivity in quantum metrology, can be achieved by generalized cat states, whi...
Modelling Quantum Transduction for Multipartite Entanglement Distribution
Laura d'Avossa, Angela Sara Cacciapuoti, Marcello Caleffi·Jul 4, 2024
Superconducting and photonic technologies are envisioned to play a key role in the Quantum Internet. However the hybridization of these technologies requires functional quantum transducers for converting superconducting qubits, exploited in quantum c...
Deterministic entanglement swapping of W states
Sajede Harraz, Yueyan Wang, Shuang Cong·Jul 4, 2024
In this paper, we propose a deterministic entanglement swapping protocol for generating a shared three-qubit W state between two remote parties. Our method offers a reliable alternative to existing probabilistic protocols for W state entanglement swa...
The sudden death of quantum advantage in correlation generations
Weixiao Sun, Fuchuan Wei, Yuguo Shao +1 more·Jul 3, 2024
As quantum error corrections still cannot be realized physically, quantum noise is the most profound obstacle to the implementations of large-scale quantum algorithms or quantum schemes. It has been well-known that if a quantum computer suffers from ...
Leapfrogging Sycamore: harnessing 1432 GPUs for 7× faster quantum random circuit sampling
Xianhe Zhao, Han-Sen Zhong, Feng Pan +10 more·Jun 27, 2024
ABSTRACT Random quantum circuit sampling serves as a benchmark to demonstrate quantum computational advantage. Recent progress in classical algorithms, especially those based on tensor network methods, has significantly reduced the classical simulati...
All-optical production of Bose-Einstein condensates with 2 Hz repetition rate
Mareike Hetzel, Martin Quensen, Jan Simon Haase +1 more·Jun 24, 2024
Bose-Einstein condensates (BECs) of neutral atoms constitute an important quantum system for fundamental research and precision metrology. Many applications require short preparation times of BECs, for example, for optimized data acquisition rates in...
Transversal cnot gate with multicycle error correction
Younghun Kim, M. Sevior, Muhammad Usman·Jun 18, 2024
A scalable and programmable quantum computer holds the potential to solve computationally intensive tasks that classical computers cannot accomplish within a reasonable time frame, achieving quantum advantage. However, the vulnerability of the curren...
Polynomial Reduction Methods and their Impact on QAOA Circuits
Lukas Schmidbauer, Karen Wintersperger, Elisabeth Lobe +1 more·Jun 13, 2024
Abstraction layers are of paramount importance in software architecture, as they shield the higher-level formulation of payload computations from lower-level details. Since quantum computing (QC) introduces many such details that are often unaccustom...
Optimized QUBO formulation methods for quantum computing
Dario De Santis, Salvatore Tirone, Stefano Marmi +1 more·Jun 11, 2024
Quantum computers have strict requirements for the problems that they can efficiently solve. One of the principal limiting factor for the performances of noisy intermediate-scale quantum (NISQ) devices is the number of qubits required by the running ...
An Analysis of Quantum Annealing Algorithms for Solving the Maximum Clique Problem
Alessandro Gherardi, Alberto Leporati·Jun 11, 2024
Quantum annealers can be used to solve many (possibly NP-hard) combinatorial optimization problems, by formulating them as quadratic unconstrained binary optimization (QUBO) problems or, equivalently, using the Ising formulation. In this paper we ana...
Quantum repeaters based on stationary Gottesman-Kitaev-Preskill qubits
Stefan Häußler, Peter van Loock·Jun 11, 2024
Quantum repeaters that incorporate quantum error correction codes have been shown to be a promising alternative compared with the original quantum repeaters that rely upon probabilistic quantum error detection depending on classical communication ove...