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Live trends in quantum computing research, updated daily from arXiv.
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Exact solutions of the inhomogeneous nonlinear Schrödinger equation through supersymmetric potentials
David J. Fernández C., O. Pavón-Torres·Nov 22, 2025
By employing supersymmetric quantum mechanics, we present a general algorithm to construct supersymmetric partner potentials and hence derive exact stationary solutions of the inhomogeneous nonlinear Schrödinger equation (INLSE). This is possible due...
Coherence of quantum non-Gaussian states via nonlinear absorption of quanta
Kingshuk Adhikary, Darren W. Moore, Radim Filip·Nov 22, 2025
The linear and phase insensitive absorption of a single quanta via coherent interactions with a saturable system, even a single ground state qubit, is sufficient to deterministically generate quantum non-Gaussian states in an oscillator, even stimula...
Influence of the radial number of Laguerre-Gaussian vortex beams on their propagation in a turbulent medium
D. D. Reshetnikov, A. S. Losev·Nov 22, 2025
The paper considers the propagation of Laguerre-Gaussian beams in a turbulent gas medium. As demonstrated by numerical modelling and the decomposition of Laguerre-Gaussian modes according to the basis of orthogonal Zernike polynomials, disparities in...
Quantum and classical analyses of intertwined phase transitions in odd-mass Nb isotopes
A. Leviatan·Nov 22, 2025
Quantum phase transitions (QPTs) in odd-mass Nb isotopes are investigated in the framework of the interacting boson-fermion model with configuration mixing. A quantum analysis reveals a Type I QPT (gradual shape-evolution within the intruder configur...
Noise-Adaptive Quantum Circuit Mapping for Multi-Chip NISQ Systems via Deep Reinforcement Learning
Atiye Zeynali, Zahra Bakhshi·Nov 22, 2025
The transition from monolithic to distributed multi-chip quantum architectures has fundamentally altered the circuit compilation landscape, introducing challenges in managing temporal noise variations and minimizing expensive inter-chip operations. W...
Fewest switches surface hopping with decoherence in the Marcus inverted regime: correct rates but wrong thermal populations
Manas Nagda, Priyam Kumar De, Amber Jain·Nov 22, 2025
Fewest switches surface hopping (FSSH) is a well benchmarked dynamical method for simulating nonadiabatic systems. In particular, the literature shows that for the spin-Boson model Hamiltonian, FSSH with appropriate corrections usually captures the d...
Attractor Subspace and Decoherence-Free Algebra of Quantum Dynamics
Daniele Amato, Paolo Facchi, Arturo Konderak·Nov 22, 2025
In this review we discuss some results on the asymptotic dynamics of finite-dimensional open quantum systems in the Heisenberg picture. Both the spectral and algebraic approaches to this topic are addressed, with particular emphasis on their relation...
Elucidating Many-Body Effects in Molecular Core Spectra through Real-Time Approaches: Efficient Classical Approximations and a Quantum Perspective
Vibin Abraham, Priyabrata Senapati, Himadri Pathak +1 more·Nov 22, 2025
Accurately resolving many-body satellite features in molecular core-level spectra requires theoretical approaches that capture electron correlation both efficiently and systematically. The recently developed time-dependent double coupled-cluster (TD-...
Accelerated optimization of measured relative entropies
Zixin Huang, Mark M. Wilde·Nov 22, 2025
The measured relative entropy and measured Rényi relative entropy are quantifiers of the distinguishability of two quantum states $ρ$ and $σ$. They are defined as the maximum classical relative entropy or Rényi relative entropy realizable by performi...
The Harrow-Hassidim-Lloyd algorithm with qutrits
Tushti Patel, V. S. Prasannaa·Nov 22, 2025
We extend the Harrow-Hassidim-Lloyd (HHL) algorithm, which is well-studied in the qubit framework, to its qutrit counterpart (which we call qutrit HHL, as opposed to qubit HHL, which is HHL using qubits), and develop a program for its implementation....
Brute-force positivization of $J_1-J_2$ model ground states
P. A. Bannykh, O. M. Sotnikov, V. V. Mazurenko·Nov 22, 2025
Exploring sign structures of quantum wave functions attracts considerable attention due to the potential for advances in modeling complex phases of matter. This stimulates developing different optimization procedures for imitating and manipulating si...
Computational Quantum Anamorphic Encryption and Quantum Anamorphic Secret-Sharing
Sayantan Ganguly, Shion Samadder Chaudhury·Nov 22, 2025
The concept of anamorphic encryption, first formally introduced by Persiano et al. in their influential 2022 paper titled ``Anamorphic Encryption: Private Communication Against a Dictator,'' enables embedding covert messages within ciphertexts. One o...
Verifcation of general multi-qudit pure states
Xiao-Dong Zhang, Bin-Bin Cai, Song Lin·Nov 22, 2025
Verifying prepared quantum states is crucial for hybrid systems whose subsystems may have different local dimensions. We present a generalized stabilizer framework and associated test that apply to general multi-qudit states, including composite-dime...
Entanglement Generation via Hamiltonian Dynamics Having Limited Resources
Moein Naseri·Nov 22, 2025
We investigate the fundamental limits of entanglement generation under bipartite Hamiltonian dynamics when only finite physical resources-specifically, bounded energy variance-are available. Using the relative entropy of entanglement, we derive a clo...
Hyperbolic Dispersion and Low-Frequency Plasmons in Electrides
Qi-Dong Hao, Hao Wang, Hong-Xing Song +2 more·Nov 22, 2025
Natural hyperbolic materials have attracted significant interest in the field of photonics due to their unique optical properties. Based on the initial successful explorations on layered crystalline materials, hyperbolic dispersion was associated wit...
Exact Non-Identity Check and Gate-Teleportation-Based Indistinguishability Obfuscation are NP-hard for Low-T-Depth Quantum Circuits
Joshua Nevin·Nov 22, 2025
In 2021, Broadbent and Kazmi developed a gate-teleportation-based protocol for computational indistinguishability obfuscation of quantum circuits. This protocol is efficient for Clifford+T circuits with logarithmically many T-gates, where the limitin...
Unified Bulk-Entanglement Correspondence in Non-Hermitian Systems
Xudong Zhang, Zhaoyu Sun, Bin Guo·Nov 22, 2025
The non-Hermitian skin effect (NHSE) fundamentally invalidates the conventional bulk-boundary correspondence (BBC), leading topological diagnostics into a crisis. While the non-Bloch polarization $P_β$ defined on the generalized Brillouin zone restor...
Kicked-Ising Quantum Battery
Sebastián V. Romero, Xi Chen, Yue Ban·Nov 21, 2025
Quantum batteries (QBs) have emerged as promising candidates capable of outperforming classical counterparts by utilizing entangled operators. Spin chains, in particular, exhibit unique {charging} properties across diverse settings. Here, we introduc...
Quantum Algorithm for Estimating Gibbs Free Energy and Entropy via Energy Derivatives
Shangjie Guo, Corneliu Buda, Nathan Wiebe·Nov 21, 2025
Estimating vibrational entropy is a significant challenge in thermodynamics and statistical mechanics due to its reliance on quantum mechanical properties. This paper introduces a quantum algorithm designed to estimate vibrational entropy via energy ...
Centipedes Leap into the Quantum Realm
Kaytki Chakankar, Xinhui Tang, Yiguo Zhang·Nov 21, 2025
The centipede game is a two-player non-zero-sum game. Each turn, a player can choose whether they want to take or pass a growing reward. The classical, rational solution of this game shows defection in the first round, when in reality, players cooper...