Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Practical quantum teleportation with finite-energy codebooks
W. K. Yam, M. Renger, S. Gandorfer +2 more·Dec 29, 2025
Quantum communication exploits non-classical correlations to achieve efficient and unconditionally secure exchange of information. In particular, the quantum teleportation protocol allows for a deterministic and secure transfer of unknown quantum sta...
Universal Entanglement Growth along Imaginary Time in Quantum Critical Systems
Chang-Yu Shen, Shuai Yin, Zi-Xiang Li·Dec 29, 2025
Characterizing universal entanglement features in higher-dimensional quantum matter is a central goal of quantum information science and condensed matter physics. While the subleading corner terms in two-dimensional quantum systems encapsulate essent...
Novel qubits in hybrid semiconductor-superconductor nanostructures
Marta Pita-Vidal, Rubén Seoane Souto, Srijit Goswami +4 more·Dec 29, 2025
Hybrid semiconductor-superconductor qubits have recently emerged as a promising alternative to traditional platforms, combining material advantages with device-level tunability. A defining feature is their gate-tunable Josephson coupling, enabling su...
The Quantum Rashomon Effect as a Failure of Gluing
Partha Ghose·Dec 29, 2025
Recently Szangolies has argued (in the setting of extended Wigner's-friend scenarios) that quantum theory permits ``Rashomon'' situations: multiple internally coherent accounts of events that cannot be combined into a single, consistent global narrat...
Generation of Squeezed Fock States by Particle-Number Measurements on Multimode Gaussian States
S. B. Korolev, A. A. Silin·Dec 29, 2025
We investigate the generation of squeezed Fock states (SFSs) via particle-number measurements in the modes of multimode Gaussian states. We identify a universal class of $N$-mode Gaussian states for which measuring $N-1$ modes results in the generati...
Towards a Faithful Quantumness Certification Functional for One-Dimensional Continuous-Variable Systems
Ole Steuernagel, Ray-Kuang Lee·Dec 29, 2025
If the phase space-based Glauber-Sudarshan distribution, $P_ρ$, has negative values the quantum state,~$ρ$, it describes is nonclassical. Due to $P$'s singular behaviour this simple criterion is impractical to use. Recent work [Bohmann and Agudelo, P...
Electromagnetically-Induced Transparency Bridges Disconnected Light-Harvesting Networks
Jun Wang, Rui Li, Yi Li +2 more·Dec 29, 2025
The energy-transfer efficiency of the natural photosynthesis system seems to be perfectly optimized during the evolution for millions of years. However, how to enhance the efficiency in the artificial light-harvesting systems is still unclear. In thi...
Euler-Korteweg vortices: A fluid-mechanical analogue to the Schrödinger and Klein-Gordon equations
D. M. F. Bischoff van Heemskerck·Dec 29, 2025
Quantum theory and relativity exhibit several formal analogies with fluid mechanics. This paper extends upon known analogies by showing that under specific assumptions, an Euler-Korteweg vortex model can be cast into equations that are mathematically...
Quantum Phase Transitions in Coherent Ising Machines: XY Model for Demonstration
Jing-Yi-Ran Jin, Shuang-Quan Ma, Qing Ai·Dec 29, 2025
Quantum phase transitions (QPTs) in coherent Ising machines (CIMs) are studied via a spectral mapping between the one-dimensional XY spin model and a network of degenerate optical parametric oscillators (DOPOs). This exact correspondence reveals that...
Localization-landscape generalized Mott-Berezinskiĭ formula
Gabriel Hayoun, Ilya A. Gruzberg, Marcel Filoche·Dec 29, 2025
We introduce a conceptual reformulation of the Mott-Berezinskiĭ (MB) theory of low-frequency AC conductivity in disordered systems based on localization landscape theory. Instead of assuming uniform localization and fixed hopping distances, transport...
LogosQ: A High-Performance and Type-Safe Quantum Computing Library in Rust
Shiwen An, Jiayi Wang, Konstantinos Slavakis·Dec 29, 2025
Developing robust and high performance quantum software is challenging due to the dynamic nature of existing Python-based frameworks, which often suffer from runtime errors and scalability bottlenecks. In this work, we present LogosQ, a high performa...
Quantum Metrology via Adiabatic Control of Topological Edge States
Xingjian He, Aoqian Shi, Jianjun Liu +1 more·Dec 29, 2025
Criticality-based quantum sensing exploits hypersensitive response to system parameters near phase transition points. This work uncovers two metrological advantages offered by topological phase transitions when the probe is prepared as topological ed...
Emergence of nonclassical radiation in strongly laser-driven quantum systems
Ivan Gonoskov, Christian Hünecke, Stefanie Gräfe·Dec 29, 2025
We present an analytical framework for the emergence of nonclassical radiation in strongly laser-driven quantum systems, with a focus on high-order harmonic generation (HHG). Starting from a Pauli-Fierz description, we employ a parametric factorizati...
Efficient flip-chip and on-chip-based modulation of flux-tunable superconducting resonators
Achintya Paradkar, Paul Nicaise, Karim Dakroury +5 more·Dec 28, 2025
We demonstrate the efficient modulation of flux-tunable superconducting resonators (FTRs) using flip-chip or on-chip-based input coils. The FTRs we use are aluminum-based quarter-wave coplanar waveguide resonators terminated with 100um or 200um-wide ...
Theoretical Analysis and Simulations of Memory-based and All-photonic Quantum Repeaters and Networks
Chuen Hei Chan, Charu Jain, Ezra Kissel +4 more·Dec 28, 2025
Developing and deploying advanced Quantum Repeater (QR) technologies will be necessary to scale quantum networks to longer distances. Depending on the error mitigation mechanisms adopted to suppress loss and errors, QRs are typically classified into ...
Clifford entropy
Gianluca Cuffaro, Matthew B. Weiss·Dec 28, 2025
We introduce the Clifford entropy, a measure of how close an arbitrary unitary is to a Clifford unitary, which generalizes the stabilizer entropy for states. We show that this quantity vanishes if and only if a unitary is Clifford, is invariant under...
SOFT: a high-performance simulator for universal fault-tolerant quantum circuits
Riling Li, Keli Zheng, Yiming Zhang +4 more·Dec 28, 2025
Circuit simulation tools are critical for developing and assessing quantum-error-correcting and fault-tolerant strategies. In this work, we present SOFT, a high-performance SimulatOr for universal Fault-Tolerant quantum circuits. Integrating the gene...
Applying Grover-mixer Quantum Alternating Operator Ansatz Algorithm to High-order Unconstrained Binary Optimization Problems
Evgeniy O. Kiktenko, Elizaveta V. Krendeleva, Aleksey K. Fedorov·Dec 28, 2025
The Quantum Approximate Optimization Algorithm (QAOA) is among leading candidates for achieving quantum advantage on near-term processors. While typically implemented with a transverse-field mixer (XM-QAOA), the Grover-mixer variant (GM-QAOA) offers ...
Efficient population transfer in a quantum dot exciton under phonon-induced decoherence via shortcuts to adiabaticity
Spyridon G. Kosionis, Sutirtha Biswas, Christina Fouseki +2 more·Dec 28, 2025
In the present study, we apply shortcut to adiabaticity pulses (time-dependent Rabi frequency and detuning) for the efficient population transfer from the ground to the exciton state in a GaAs/InGaAs quantum dot with phonon-induced dephasing. We use ...
Stabilizer Entropy of Subspaces
Simone Cepollaro, Gianluca Cuffaro, Matthew B. Weiss +3 more·Dec 28, 2025
We consider the costs and benefits of embedding the states of one quantum system within those of another. Such embeddings are ubiquitous, e.g., in error correcting codes and in symmetry-constrained systems. In particular we investigate the impact of ...