quant-ph papers | Gist.Science

Quantum physics explores the strange and often counterintuitive rules that govern the universe at its smallest scales. This field investigates how particles like electrons and photons behave in ways that defy our everyday intuition, forming the backbone of modern technologies from lasers to future quantum computers. While the mathematics can be daunting, the core ideas promise to revolutionize how we understand reality and process information.

At Gist.Science, we make these complex discoveries accessible to everyone. We systematically process every new preprint published in the Quant-Ph category on arXiv, transforming dense academic papers into clear, plain-language explanations alongside detailed technical summaries. Whether you are a seasoned researcher or a curious reader, our goal is to bridge the gap between cutting-edge theory and human understanding.

Below are the latest papers in quantum physics, distilled to help you grasp the newest breakthroughs without getting lost in the jargon.

⚛️ quantum physics

Traversability dynamics of minimal Sachdev-Ye-Kitaev Wormhole-inspired teleportation protocol with a parity-time ( $\mathcal{PT}$ )-symmetric non-Hermitian deformation

This paper demonstrates that introducing $\mathcal{PT}$ -symmetric non-Hermitian deformations to a minimal Sachdev-Ye-Kitaev wormhole teleportation protocol induces a phase transition that amplifies the teleported signal and enhances fidelity through entanglement distillation, thereby offering a robust mechanism for signal amplification in noisy quantum many-body systems.

Sudhanva Joshi, Sunil Kumar Mishra2026-01-27

⚛️ quantum physics

Reducing Circuit Resources in Grover's Algorithm via Constraint-Aware Initialization

This paper presents a systematic framework for constraint-aware initialization in Grover's algorithm that, despite the overhead of preparing structured initial states, demonstrably reduces overall circuit resources such as gate counts and depth for problems with linear constraints compared to standard uniform initialization.

Eunok Bae, Jeonghyeon Shin, Minjin Choi2026-01-27

⚛️ quantum physics

Performance Analysis of Quantum-Secure Digital Signature Algorithms in Blockchain

This paper presents a blockchain prototype and performance analysis evaluating the integration of post-quantum lattice-based signature schemes, including CRYSTALS-Dilithium, Falcon, Hawk, and HAETAE, to assess their viability as quantum-resistant alternatives to current elliptic-curve cryptography in blockchain systems.

Tushar Jain2026-01-27

🔬 applied physics

Bosonic Diffusive Channel: Quantum Metrology via Finite Non-Gaussian Resource

This paper investigates the estimation of dephasing-induced decoherence in continuous-variable quantum systems by identifying optimal non-Gaussian probe states, such as squeezed cat and symmetric squeezed compass states, and proposing an ancilla-based measurement scheme for scenarios where direct intra-cavity field access is impractical.

Arman, Prasanta K. Panigrahi2026-01-27

⚛️ quantum physics

Experimental Phase-Matching Quantum Cryptographic Conferencing in Symmetric and Asymmetric Fiber Channels

This paper experimentally demonstrates the feasibility of a three-party phase-matching quantum cryptographic conferencing protocol over both symmetric and asymmetric fiber channels up to 100 km, thereby verifying its potential for practical intercity quantum networks.

Mi Zou, Bin-Chen Li, Shuai Zhao, Yingqiu Mao, Dandan Qin, Xiao Jiang, Teng-Yun Chen, Jian-Wei Pan2026-01-27

⚛️ quantum physics

Quantum Machine Learning Using Quantum Illumination With Quantum Enhanced Interference

This paper proposes a hybrid Quantum Machine Learning framework that integrates Quantum Illumination and quantum-enhanced interference to analyze qubit superposition states via double-slit diffraction patterns, ultimately constructing a quantum neural network with backpropagation to determine qubit positions for optimizing quantum search and optimization algorithms.

Pallab Biswas, Tamal Maity2026-01-27

🔬 materials science

Colour Centre Formation in Silicon-On-Insulator for On-Chip Photonic Integration

This paper investigates the formation dynamics and optimization of various colour centres in silicon-on-insulator for quantum photonics, revealing coupled creation mechanisms, identifying optimal annealing and fabrication parameters, and discovering previously uncharacterized stable optical signals.

Arnulf J. Snedker-Nielsen, David R. Gongora, Magnus L. Madsen, Christian H. Christiansen, Eike L. Piehorsch, Mathias Ø. (…)2026-01-27

🔢 mathematics

Quantum Radar System Using Born-Feynman path integrals approach

This paper proposes a quantum radar system utilizing a Born-Feynman path integrals approach with quantum dot-based entangled photon generation, microwave transmission, and cryogenically cooled superconducting detectors to achieve precise target detection through quantum correlation analysis.

Kumar Gautam, Akshit Dutta, Kumar Shubham2026-01-27

⚛️ quantum physics

Quantum Paradoxes and the Quantum-Classical Transition under Unitary Measurement Dynamics with Random Hamiltonians

This paper proposes a unified dynamical framework where measurement, state reduction, and the quantum-classical transition emerge solely from unitary evolution driven by random Hamiltonians and constrained by finite detector resolution, thereby deriving the Born rule and classical mechanics without invoking nonunitary collapse.

Alexey A. Kryukov2026-01-27

⚛️ quantum physics

Complex-Valued-Matrix Permanents: SPA-based Approximations and Double-Cover Analysis

This paper extends sum-product algorithm (SPA) based methods for approximating matrix permanents from non-negative real-valued to complex-valued matrices by utilizing double-edge normal factor graphs, while employing graph cover analysis to characterize the behavior and validity of these Bethe approximations in the complex domain.

Junda Zhou, Pascal O. Vontobel2026-01-27

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quant-ph

Traversability dynamics of minimal Sachdev-Ye-Kitaev Wormhole-inspired teleportation protocol with a parity-time (PT\mathcal{PT}PT)-symmetric non-Hermitian deformation

Reducing Circuit Resources in Grover's Algorithm via Constraint-Aware Initialization

Performance Analysis of Quantum-Secure Digital Signature Algorithms in Blockchain

Bosonic Diffusive Channel: Quantum Metrology via Finite Non-Gaussian Resource

Experimental Phase-Matching Quantum Cryptographic Conferencing in Symmetric and Asymmetric Fiber Channels

Quantum Machine Learning Using Quantum Illumination With Quantum Enhanced Interference

Colour Centre Formation in Silicon-On-Insulator for On-Chip Photonic Integration

Quantum Radar System Using Born-Feynman path integrals approach

Quantum Paradoxes and the Quantum-Classical Transition under Unitary Measurement Dynamics with Random Hamiltonians

Complex-Valued-Matrix Permanents: SPA-based Approximations and Double-Cover Analysis

Traversability dynamics of minimal Sachdev-Ye-Kitaev Wormhole-inspired teleportation protocol with a parity-time ( $\mathcal{PT}$ )-symmetric non-Hermitian deformation