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Live trends in quantum computing research, updated daily from arXiv.
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The Thermodynamics of the Gravity from Entropy Theory
Ginestra Bianconi·Oct 26, 2025
The Gravity from Entropy (GfE) action posits that the fundamental nature of gravity is information encoded in the metric degrees of freedom. This statistical mechanics theory is associated with the GfE Lagrangian given by the Geometric Quantum Relati...
Resilience of Entanglement-Induced Coordination in Adversarial Environments: The Team-Based Quantum Sabotage Game
Sinan Bugu·Oct 25, 2025
Quantumgametheoryextendsclassical strategic decision-making by incorporating quantum superposition, entanglement, and measurement-induced randomness into competitive interactions. This paper introduces a team-based Quantum Sabotage Game (QSG), in whi...
Nonlinear optical behavior of confined electrons under torsion and magnetic fields
Carlos Magno O. Pereira, Edilberto O. Silva·Oct 25, 2025
In this work, we investigate the influence of torsion, Aharonov-Bohm flux, and external magnetic fields on the linear and nonlinear optical properties of a confined quantum system. The confinement potential is not assumed a priori, but emerges as a r...
Impurity-induced topological decomposition
Tianxing Shi, Chuhang Zhang, Liang Jin +1 more·Oct 24, 2025
Controlling topological phases is a central goal in quantum materials and related fields, enabling applications such as robust transport and programmable edge states. Here we uncover a mechanism in which local on-site impurities act as knobs to decom...
Enhancement of femtosecond photon echo signals from an inhomogeneously broadened InAs quantum dot ensemble using chirped pulses
Yuta Kochi, Yutaro Kinoshita, Masanari Watanabe +2 more·Oct 24, 2025
Photon echo (PE) techniques offer a promising approach to optical quantum memory, yet their implementation in conventional platforms, such as rare-earth-ion-doped crystals, is hindered by limited bandwidths. Semiconductor quantum dot (QD) ensembles, ...
The spinterface mechanism for the chiral-induced spin selectivity effect: A Critical Perspective
Subhajit Sarkar, Amos Sharoni, Oliver L. A. Monti +1 more·Oct 24, 2025
The chiral-induced spin selectivity (CISS) effect, whereby chiral molecules preferentially transmit electrons of one spin orientation, remains one of the most intriguing and debated phenomena at the interface of spintronics, molecular electronics, an...
Absence of gravitationally induced entanglement in certain semi-classical theories of gravity
Ward Struyve·Oct 23, 2025
Bose et al. and Marletto and Vedral proposed an experiment to test whether gravity can induce entanglement between massive systems, arguing that the capacity to do so would imply the quantum nature of gravity. In this work, a class of semi-classical ...
Landau Polarons as Generators of Quantum-Coherent States
Arnab Ghosh, Patrick Brosseau, Dmitry N. Dirin +3 more·Oct 23, 2025
Since Landau's theory, polarons have been understood as quasiparticles in which charges are dressed by the lattice field, yet decades of transport and spectroscopic studies have yielded only static indirect renormalizations. Whether such dressing can...
Picosecond Wireless Synchronization with Entangled Photons via Grid-Based Quantum Coverage in Indoor Optical Systems
Hossein Safi, Mohammad Taghi Dabiri, Mazen Hasna +2 more·Oct 23, 2025
In this paper, we present a robust entanglement-assisted synchronization framework for indoor optical wireless systems that explicitly captures the coupling between spatial beam geometry and temporal synchronization accuracy. Unlike conventional appr...
Restoring Quantum Superiority of Noisy Quantum Illumination
Wei Wu, Jun-Hong An·Oct 23, 2025
Quantum illumination uses quantum entanglement as a resource to enable higher-resolution detection of low-reflectivity targets than is possible with classical techniques. This revolutionary technology could transform modern radar. However, it is wide...
Kondo breakdown induced by the non-Hermitian complex hybridization
Kazuki Yamamoto, Masaya Nakagawa, Norio Kawakami·Oct 23, 2025
Recently, a non-Hermitian Anderson impurity model with one-body loss has been studied in [Phys. Rev. B 111, 125157 (2025)}], and it has been demonstrated that the renormalization effect generated by strong correlations counterintuitively changes the ...
Absence of measurement- and unraveling-induced entanglement transitions in continuously monitored one-dimensional free fermions
Clemens Niederegger, Tatiana Vovk, Elias Starchl +1 more·Oct 22, 2025
Continuous monitoring of one-dimensional free fermionic systems can generate phenomena reminiscent of quantum criticality, such as logarithmic entanglement growth, algebraic correlations, and emergent conformal invariance, but in a nonequilibrium set...
Hybrid Quantum-Classical Eigensolver with Real-Space Sampling and Symmetric Subspace Measurements
Lei Xu, Ling Wang·Oct 22, 2025
We propose a hybrid quantum-classical eigensolver to address the computational challenges of simulating strongly correlated quantum many-body systems, where the exponential growth of the Hilbert space and extensive entanglement render classical metho...
Practical Noise Mitigation for Quantum Annealing via Dynamical Decoupling: Toward Industry-Relevant Optimization using Trapped Ions
Sebastian Nagies, Chiara Capecci, Marcel Seelbach Benkner +6 more·Oct 21, 2025
Quantum annealing is a framework for solving combinatorial optimization problems. While it offers a promising path towards a practical application of quantum hardware, its performance in real-world devices is severely limited by environmental noise t...
Broadband Thermal Noise Correlations Induced by Measurement Back-Action
Jiaxing Ma, Thomas J. Clark, Vincent Dumont +1 more·Oct 21, 2025
Modern mechanical sensors increasingly measure motion with precision sufficient to resolve the fundamental thermal noise floor over a broad band. Compared to traditional sensors -- achieving this limit only near resonance -- this capability provides ...
Repulsively Bound Hadrons in a $\mathbb{Z}_2$ Lattice Gauge Theory
Sayak Guha Roy, Vaibhav Sharma, Kaidi Xu +3 more·Oct 21, 2025
The $\mathbb{Z}_2$ lattice gauge theory is a paradigmatic model that exhibits gauge-field-mediated-confinement of pairs of particles into mesons, drawing connections to quantum chromodynamics. In the absence of any additional attractive interactions ...
Dephasing through Bremsstrahlung emission: insights from quantum Boltzmann equation
Hassan Manshouri, Moslem Zarei·Oct 21, 2025
We investigate decoherence mechanisms in open quantum systems using quantum field theory techniques and the quantum Boltzmann equation. Specifically, we focus on decoherence through Bremsstrahlung emission, a fundamental process in quantum electrodyn...
Fingerprints of cluster-based Haldane and bound-magnon states in a spin-1 Heisenberg diamond chain
Azam Zoshki, Hamid Arian Zad, Katarina Karlova +1 more·Oct 21, 2025
We investigate magnetic and thermodynamic properties of a spin-1 Heisenberg diamond chain in a magnetic field using a combination of analytical and numerical methods including the variational approach, exact diagonalization, density-matrix renormaliz...
Parametric resonant enhancement of motional entanglement under optimal control: an analytical study
Gad Horovitz, Alexander N. Poddubny·Oct 21, 2025
We study theoretically continuous-variable entanglement between the motional degrees of freedom of optically trapped massive particles coupled via the Coulomb interaction, in the presence of a feedback control scheme. We perform a detailed analysis o...
Coherence-induced deep thermalization transition in random permutation quantum dynamics
Chang Liu, Matteo Ippoliti, Wen Wei Ho·Oct 21, 2025
We report a phase transition in the projected ensemble - the collection of post-measurement wavefunctions of a local subsystem obtained by measuring its complement. The transition emerges in systems undergoing random permutation dynamics, a type of q...