Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,405 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Robust entanglement buffers based on SWAP interactions
Ye-Chao Liu, Otfried Gühne, Stefan Nimmrichter·Dec 8, 2023
Quantum entanglement is the essential resource for quantum communication and distributed information processing in a quantum network. However, the remote generation over a network suffers from inevitable transmission loss and other technical difficul...
Enhanced quantum sensing mediated by a cavity in open systems
Quinn Langfitt, Zain H. Saleem, Tian Zhong +2 more·Dec 8, 2023
We simulate the dynamics of systems with $N$ = 1-20 qubits coupled to a cavity in order to assess their potential for quantum metrology of a parameter in the open systems limit. The qubits and the cavity are both allowed to have losses and the system...
General teleportation channel in Fermionic Quantum Theory
Sanam Khan, R. Jehadeesan, Sibasish Ghosh·Dec 7, 2023
Quantum Teleportation is a very useful scheme for transferring quantum information. Given that the quantum information is encoded in a state of a system of distinguishable particles, and given that the shared bi-partite entangled state is also that o...
Flying Spin Qubits in Quantum Dot Arrays Driven by Spin-Orbit Interaction
D. Fern'andez-Fern'andez, Y. Ban, G. Platero·Dec 7, 2023
Quantum information transfer is fundamental for scalable quantum computing in any potential platform and architecture. Hole spin qubits, owing to their intrinsic spin-orbit interaction (SOI), promise fast quantum operations which are fundamental for ...
Integration of graphene-based superconducting quantum circuits in a three-dimensional cavity
K. Chiu, Youyi Chang, Avishma J. Lasrado +8 more·Dec 7, 2023
Integrating 2D materials into circuit quantum electrodynamics (c-QED) devices is an emerging filed in recent years. This integration not only facilitates the exploration of potential applications in quantum information processing but also enables the...
Fault-Tolerant One-Way Noiseless Amplification for Microwave Bosonic Quantum Information Processing
Hany Khalifa, Riku Jäntti, G. Paraoanu·Dec 7, 2023
Microwave quantum information networks require reliable transmission of single-photon propagating modes over lossy channels. In this article, we propose a microwave noiseless linear amplifier (NLA) suitable to circumvent the losses incurred by a flyi...
A hybrid quantum-classical algorithm for Bayes-optimal quantum state discrimination using the source code
Ankith Mohan, Jamie Sikora, Sarvagya Upadhyay·Dec 7, 2023
Quantum state discrimination is a fundamental primitive in quantum information processing, underpinning tasks in quantum communication, sensing, and learning. We consider the general Bayes framework, as introduced by Helstrom, for state discriminatio...
Logical quantum processor based on reconfigurable atom arrays
D. Bluvstein, S. Evered, A. Geim +19 more·Dec 6, 2023
Suppressing errors is the central challenge for useful quantum computing1, requiring quantum error correction (QEC)2–6 for large-scale processing. However, the overhead in the realization of error-corrected ‘logical’ qubits, in which information is e...
Recovery of damaged information via scrambling in indefinite causal order
Tian-Ren Jin, Tian-Ming Li, Zheng-an Wang +3 more·Dec 5, 2023
Scrambling prevents the access to local information with local operators and therefore can be used to protect quantum information from damage caused by local perturbations. Even though partial quantum information can be recovered if the type of the d...
From Qubits to Opinions: Operator and Error Syndrome Measurement in Quantum-Inspired Social Simulations on Transversal Gates
Yasuko Kawahata·Dec 4, 2023
This paper delves into the history and integration of quantum theory into areas such as opinion dynamics, decision theory, and game theory, offering a novel framework for social simulations. It introduces a quantum perspective for analyzing informati...
A Graphical Rule Book for Clifford Manipulations of Stabilizer States
A. Patil, Saikat Guha·Dec 4, 2023
Stabilizer states, along with Clifford manipulations (unitary transformations and measurements) thereof—despite being efficiently simulable on a classical computer—are an important tool in quantum information processing, with applications to quantum ...
Programmable simulations of molecules and materials with reconfigurable quantum processors
N. Maskara, S. Ostermann, J. Shee +9 more·Dec 4, 2023
Simulations of quantum chemistry and quantum materials are believed to be among the most important applications of quantum information processors. However, realizing practical quantum advantage for such problems is challenging because of the prohibit...
Stochastic Model of Qudit Measurement for Superconducting Quantum Information Processing
Kangdi Yu·Dec 3, 2023
The field of superconducting quantum computing, based on Josephson junctions, has recently seen remarkable strides in scaling the number of logical qubits. In particular, the fidelities of one- and two-qubit gates are close to the breakeven point wit...
Simple and general unitarity conserving numerical real time propagators of time dependent Schrödinger equation based on Magnus expansion
Taner M. Ture, Seogjoo J. Jang·Dec 2, 2023
Magnus expansion (ME) provides a general way to expand the real-time propagator of a time-dependent Hamiltonian within the exponential such that the unitarity is satisfied at any order. We use this property and explicit integration of Lagrange interp...
Quantum fidelity kernel with a trapped-ion simulation platform
Rodrigo Mart'inez-Pena, Miguel C. Soriano, R. Zambrini·Nov 30, 2023
Quantum kernel methods leverage a kernel function computed by embedding input information into the Hilbert space of a quantum system. However, large Hilbert spaces can hinder generalization capability, and the scalability of quantum kernels becomes a...
Adaptive circuit learning of born machine: towards realization of amplitude embedding and quantum data loading
Chun-Tse Li, Hao-Chung Cheng·Nov 29, 2023
Quantum data loading plays a central role in quantum algorithms and quantum information processing. Many quantum algorithms hinge on the ability to prepare arbitrary superposition states as a subroutine, with claims of exponential speedups often pred...
Quantum circuit synthesis via a random combinatorial search
S. Ashhab, F. Yoshihara, Miwako Tsuji +2 more·Nov 29, 2023
We use a random search technique to find quantum gate sequences that implement perfect quantum state preparation or unitary operator synthesis with arbitrary targets. This approach is based on the recent discovery that there is a large multiplicity o...
A site-resolved two-dimensional quantum simulator with hundreds of trapped ions
S-A Guo, Y. Wu, J. Ye +16 more·Nov 28, 2023
A large qubit capacity and an individual readout capability are two crucial requirements for large-scale quantum computing and simulation1. As one of the leading physical platforms for quantum information processing, the ion trap has achieved a quant...
DGR: Tackling Drifted and Correlated Noise in Quantum Error Correction via Decoding Graph Re-weighting
Hanrui Wang, Pengyu Liu, Yilian Liu +4 more·Nov 27, 2023
Quantum hardware suffers from high error rates and noise, which makes directly running applications on them ineffective. Quantum Error Correction (QEC) is a critical technique towards fault tolerance which encodes the quantum information distributive...
Transformer-QEC: Quantum Error Correction Code Decoding with Transferable Transformers
Hanrui Wang, Pengyu Liu, K. Shao +5 more·Nov 27, 2023
Quantum computing has the potential to solve problems that are intractable for classical systems, yet the high error rates in contemporary quantum devices often exceed tolerable limits for useful algorithm execution. Quantum Error Correction (QEC) mi...