Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
State Similarity in Modular Superconducting Quantum Processors with Classical Communications
Bujiao Wu, Changrong Xie, Peng Mi +20 more·Jun 2, 2025
As quantum devices continue to scale, distributed quantum computing emerges as a promising strategy for executing large-scale tasks across modular quantum processors. A central challenge in this paradigm is verifying the correctness of computational ...
Quantum Key Distribution by Quantum Energy Teleportation
Shlomi Dolev, Kazuki Ikeda, Yaron Oz·Jun 1, 2025
Quantum energy teleportation (QET) is a process that leverages quantum entanglement and local operations to transfer energy between two spatially separated locations without physically transporting particles or energy carriers. We construct a QET-bas...
Quantum photonics on a chip
Aviad Katiyi, Alina Karabchevsky School of Electrical, Computer Engineering +6 more·Jun 1, 2025
Optical chips for quantum photonics are cutting-edge technology, merging photonics and quantum mechanics to manipulate light at the quantum level. These chips are crucial for advancing quantum computing, secure communication, and precision sensing by...
Coherent error induced phase transition
Hanchen Liu, Xiao Chen·May 31, 2025
We investigate the stability of logical information in quantum stabilizer codes subject to coherent unitary errors. Beginning with a logical state, we apply a random unitary error channel and subsequently measure stabilizer checks, resulting in a syn...
Detecting genuine multipartite entanglement using moments of positive maps
Saheli Mukherjee, Bivas Mallick, Sahil Gopalkrishna Naik +2 more·May 30, 2025
Genuine multipartite entanglement (GME) represents the strongest form of entanglement in multipartite systems, providing significant advantages in various quantum information processing tasks. In this work, we propose an experimentally feasible schem...
Entanglement Detection with Variational Quantum Interference: Theory and Experiment
Rui Zhang, Zhenhuan Liu, Chendi Yang +7 more·May 30, 2025
Entanglement detection is a fundamental task in quantum information science, serving as a cornerstone for quantum benchmarking and foundational studies. With an increasing qubit number that can be effectively controlled, there is a pressing need for ...
From top quarks to enhanced quantum key distribution: A Framework for Optimal Predictability of Quantum Observables
Dennis I. Martínez-Moreno, Miguel Castillo-Celeita, Diego G. Bussandri·May 30, 2025
Predicting the outcomes of quantum measurements is a cornerstone of quantum information theory and a key resource for quantum technologies. Here, we introduce a comprehensive framework for quantifying the predictability of measurements on a bipartite...
Bosonic quantum error correction using squeezed Fock states
E. N. Bashmakova, S. Korolev, T. Golubeva·May 30, 2025
In the paper, we develop a bosonic quantum error correction code based on squeezed Fock states. We compare our proposed code with one based on squeezed Schrodinger's cat states using the Knill-Laflamme cost function and the Petz map fidelity. We demo...
Optimal Haar random fermionic linear optics circuits
Paolo Braccia, N. L. Diaz, Martín Larocca +2 more·May 30, 2025
Sampling unitary Fermionic Linear Optics (FLO), or matchgate circuits, has become a fundamental tool in quantum information. Such capability enables a large number of applications ranging from randomized benchmarking of continuous gate sets, to fermi...
Fast-tracking and disentangling of qubit noise fluctuations using minimal-data averaging and hierarchical discrete fluctuation auto-segmentation
Abhishek Agarwal, Lachlan P. Lindoy, Deepesh Kumar Lall +3 more·May 29, 2025
Qubit noise and fluctuations of the noise over time are key factors limiting the performance of quantum computers. Characterising them with high temporal resolution is challenging due to multiple overlapping stochastic processes such as discrete jump...
Graded Paraparticle Algebra of Majorana Fields for Multidimensional Quantum Computing with Structured Light
Fabrizio Tamburini, N. Leone, M. Sanna +1 more·May 29, 2025
We present a theoretical framework that integrates Majorana's infinite-component relativistic equation within the algebraic structure of paraparticles through the minimal nontrivial $\mathbb{Z}_2 \times \mathbb{Z}_2$--graded Lie algebras and $R$-matr...
Fluxonium as a control qubit for bosonic quantum information
Ke Nie, J. Bradford, Supriya Mandal +3 more·May 29, 2025
Bosonic codes in superconducting resonators are a hardware-efficient avenue for quantum error correction and benefit from favorable error hierarchies provided by long-lived cavities compared to typical superconducting qubits. The required coupling to...
"Quantum supremacy"challenged. Instantaneous noise-based logic with benchmark demonstrations
Nasir Kenarangui, W. Daugherity, Arthur Powalka +1 more·May 29, 2025
Instantaneous Noise-Based Logic (INBL) represents a computational paradigm that offers a deterministic alternative to quantum computing, potentially challenging the notion of quantum supremacy without relying on quantum hardware. INBL encodes logical...
Markovian heat engine boosted by quantum coherence
Freddier Cuenca-Montenegro, Marcela Herrera, John H. Reina·May 28, 2025
We evaluate the role of quantum coherence as a thermodynamic resource in a noisy, Markovian, one-qubit heat engine. By consuming the coherence of noisy quantum states, we demonstrate that the engine can surpass the classical efficiency limit when ope...
Ultra-long-living magnons in the quantum limit
Rostyslav O. Serha, Kaitlin H. McAllister, Fabian Majcen +8 more·May 28, 2025
Solid-state platforms based on bosonic quasiparticles offer a compelling route toward on-chip quantum information technologies scalable to nanometer dimensions. Coherence time, a key figure of merit for any quantum system, is fundamentally limited by...
Configuration-dependent precision in magnetometry and thermometry using multi-qubit quantum sensors
Asghar Ullah, Özgür E. Müstecaplıoğlu, Matteo G. A. Paris·May 28, 2025
We study the performance of quantum sensors composed of four qubits arranged in different geometries for magnetometry and thermometry. The qubits interact via the transverse-field Ising model with both ferromagnetic and antiferromagnetic couplings, m...
Low crosstalk in a scalable superconducting quantum lattice
Mohammed Alghadeer, Shuxiang Cao, S. Fasciati +5 more·May 28, 2025
Superconducting quantum circuits are a key platform for advancing quantum information processing and simulation. Scaling efforts currently encounter challenges such as Josephson-junction fabrication yield, design frequency targeting, and long-range c...
Timelike Quantum Energy Teleportation in the Nambu-Jona-Lasinio Model
Fidele J. Twagirayezu·May 28, 2025
We propose a novel timelike quantum energy teleportation (QET) protocol within the 1+1 dimensional Nambu-Jona-Lasinio (NJL) model, an interacting fermionic field theory exhibiting spontaneous chiral symmetry breaking. By coupling localized Unruh-DeWi...
Interpolation of Quantum Polar Codes and Quantum Reed-Muller Codes
Keita Hidaka, Dina Abdelhadi, ruediger. urbanke·May 28, 2025
Good quantum error-correcting codes that fulfill practical considerations, such as simple encoding circuits and efficient decoders, are essential for functional quantum information processing systems. Quantum polar codes satisfy some of these require...
Depth-Based Matrix Classification for the HHL Quantum Algorithm
Mark Danza, S. L. Alarcón, Cory Merkel·May 28, 2025
Under the nearing error-corrected era of quantum computing, it is necessary to understand the suitability of certain post-NISQ algorithms for practical problems. One of the most promising, applicable and yet difficult to implement in practical terms ...