Papers
Live trends in quantum computing research, updated daily from arXiv.
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27,694
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Research Volume
13,009 papers in 12 months (-3% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
HATT: Hamiltonian Adaptive Ternary Tree for Optimizing Fermion-to-Qubit Mapping
Yuhao Liu, Kevin Yao, Jonathan Hong +5 more·Sep 3, 2024
This paper introduces the Hamiltonian-Adaptive Ternary Tree (HATT) framework to compile optimized Fermion-to-qubit mapping for specific Fermionic Hamiltonians. In the simulation of Fermionic quantum systems, efficient Fermion-toqubit mapping plays a ...
Angular Momentum Entanglement Mediated By General Relativistic Frame Dragging
Trinidad B. Lantaño, Luciano Petruzziello, Susana F. Huelga +1 more·Sep 2, 2024
Current proposals to probe the quantum nature of gravity in the low-energy regime predominantly focus on the Newtonian interaction term. In this work, we present a theoretical exploration of gravitationally mediated entanglement arising from a genuin...
INTENTAS -- An entanglement-enhanced atomic sensor for microgravity
O. Anton, I. Bröckel, D. Derr +21 more·Sep 2, 2024
The INTENTAS project aims to develop an atomic sensor utilizing entangled Bose-Einstein condensates (BECs) in a microgravity environment. This key achievement is necessary to advance the capability for measurements that benefit from both entanglement...
An almost-linear time decoding algorithm for quantum LDPC codes under circuit-level noise
Antonio deMarti iOlius, Imanol Martinez, Joschka Roffe +1 more·Sep 2, 2024
Fault-tolerant quantum computers must be designed in conjunction with classical co-processors that decode quantum error correction measurement information in real-time. In this work, we introduce the belief propagation plus ordered Tanner forest (BP+...
Optimal training of finitely sampled quantum reservoir computers for forecasting of chaotic dynamics
Osama Ahmed, Felix Tennie, Luca Magri·Sep 2, 2024
In the current Noisy Intermediate Scale Quantum (NISQ) era, the presence of noise deteriorates the performance of quantum computing algorithms. Quantum reservoir computing (QRC) is a type of quantum machine learning algorithm, which, however, can ben...
GALIC: hybrid multi-qubitwise pauli grouping for quantum computing measurement
Matthew X. Burns, Chenxu Liu, S. Stein +3 more·Sep 1, 2024
Observable estimation is a core primitive in NISQ-era algorithms targeting quantum chemistry applications. To reduce the state preparation overhead required for accurate estimation, recent works have proposed various simultaneous measurement schemes ...
Diagnosing crosstalk in large-scale QPUs using zero-entropy classical shadows
J. A. Montañez-Barrera, G. Beretta, K. Michielsen +1 more·Aug 30, 2024
As quantum processing units (QPUs) scale toward hundreds of qubits, diagnosing noise-induced correlations (crosstalk) becomes critical for reliable quantum computation. In this work, we introduce Zero-Entropy Classical Shadows (ZECS), a diagnostic to...
Nonequilibrium regimes for quasiparticles in superconducting qubits with gap-asymmetric junctions
G. Marchegiani, G. Catelani·Aug 30, 2024
Superconducting qubits hold promise for quantum computing, but their operation is challenged by various sources of noise, including excitations known as quasiparticles. Qubits with gap asymmetry larger than their transition energy are less susceptibl...
Unconditional advantage of noisy qudit quantum circuits over biased threshold circuits in constant depth
Michael de Oliveira, Sathyawageeswar Subramanian, Leandro Mendes +1 more·Aug 29, 2024
The rapid evolution of quantum devices fuels concerted efforts to experimentally establish quantum advantage over classical computing. Many demonstrations of quantum advantage, however, rely on computational assumptions and face verification challeng...
Engineering squeezed thermal reservoirs via passive linear coupling
Cheng-Lin Lee, Chiao-Hsuan Wang·Aug 28, 2024
Squeezed thermal reservoirs, characterized by thermal noise with anisotropic fluctuations, have profound implications in quantum thermodynamics and serve as powerful resources for quantum information. However, their experimental realizations remain c...
Canonical Form and Finite Blocklength Bounds for Stabilizer Codes
Dimiter Ostrev·Aug 27, 2024
First, a canonical form for stabilizer parity check matrices of arbitrary size and rank is derived. Next, it is shown that the closely related canonical form of the Clifford group can be computed in time $O(n^3)$ for $n$ qubits, which improves upon t...
Circumventing traps in analog quantum machine learning algorithms through co-design
Rodrigo Araiza Bravo, Jorge Garcia Ponce, Hong-Ye Hu +1 more·Aug 26, 2024
Quantum machine learning algorithms promise to deliver near-term, applicable quantum computation on noisy, intermediate-scale systems. While most of these algorithms leverage quantum circuits for generic applications, a recent set of proposals, calle...
Benchmarking the performance of a high-Q cavity qudit using random unitaries
N. Bornman, Tanay Roy, Joshua A. Job +4 more·Aug 23, 2024
High-coherence cavity resonators are excellent resources for encoding quantum information in higher-dimensional Hilbert spaces, moving beyond traditional qubit-based platforms. A natural strategy is to use the Fock basis to encode information in qudi...
A General Framework for Gradient-Based Optimization of Superconducting Quantum Circuits using Qubit Discovery as a Case Study
Taha Rajabzadeh, Alex Boulton-McKeehan, Sam Bonkowsky +2 more·Aug 22, 2024
Engineering the Hamiltonian of a quantum system is fundamental to the design of quantum systems. Automating Hamiltonian design through gradient-based optimization can dramatically accelerate this process. However, computing the gradients of eigenvalu...
Quantum Property Preservation
Kumar Saurav, Daniel A. Lidar·Aug 21, 2024
Quantum property preservation (QPP) is the problem of maintaining a target property of a quantum system for as long as possible. This problem arises naturally in the context of open quantum systems subject to decoherence. Here, we develop a general t...
A Quantum Approximate Optimization Algorithm-Based Decoder Architecture for NextG Wireless Channel Codes
Srikar Kasi, James Sud, Kyle Jamieson +1 more·Aug 21, 2024
Forward Error Correction (FEC) provides reliable data flow in wireless networks despite the presence of noise and interference. However, its processing demands significant fraction of a wireless network's resources, due to its computationally-expensi...
Stabilizer codes for Heisenberg-limited many-body Hamiltonian estimation
S. Antu, Sisi Zhou·Aug 20, 2024
Estimating many-body Hamiltonians has wide applications in quantum technology. By allowing coherent evolution of quantum systems and entanglement across multiple probes, the precision of estimating a fully connected k-body interaction can scale up to...
Coprime Bivariate Bicycle Codes and Their Layouts on Cold Atoms
Ming Wang, Frank Mueller·Aug 19, 2024
Quantum computing is deemed to require error correction at scale to mitigate physical noise by reducing it to lower noise levels while operating on encoded logical qubits. Popular quantum error correction schemes include CSS code, of which surface co...
A Comprehensive Review of Quantum Circuit Optimization: Current Trends and Future Directions
Krishnageetha Karuppasamy, Varun Puram, Stevens Johnson +1 more·Aug 16, 2024
Optimizing quantum circuits is critical for enhancing computational speed and mitigating errors caused by quantum noise. Effective optimization must be achieved without compromising the correctness of the computations. This survey explores recent adv...
Fault-tolerant optical interconnects for neutral-atom arrays
Josiah Sinclair, Joshua Ramette, Brandon Grinkemeyer +3 more·Aug 16, 2024
We analyze the use of photonic links to enable large-scale fault-tolerant connectivity of locally error-corrected modules based on neutral atom arrays. Our approach makes use of recent theoretical results showing the robustness of surface codes to bo...