Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Simulations for Extreme Ultraviolet Photolithography
Tyler D. Kharazi, Stepan Fomichev, Shu Kanno +4 more·Feb 23, 2026
Extreme Ultraviolet (EUV) lithography is the state-of-the-art process in semiconductor fabrication, yet its spatial resolution is fundamentally limited by the ``blur'' originating from absorption of photons at 92 eV, which induce physical and chemica...
Quantum Information Approach to Bosonization of Supersymmetric Yang-Mills Fields
Radhakrishnan Balu, S. James Gates·Feb 23, 2026
We consider bosonization of supersymmetry in the context of Wess-Zumino quantum mechanics. Our motivation for this investigation is the flexibility the bosonic fock space affords as any classical probability distribution can be realized on it making ...
Experimental characterization of coherent and non-Markovian errors using tangent space decomposition
Elia Perego, Andrea Rodriguez-Blanco, K. Birgitta Whaley +1 more·Feb 23, 2026
Accurate characterization of coherent and non-Markovian errors remains a central challenge in quantum information processing, as conventional benchmarking techniques typically rely on Markovian and time-independent noise assumptions. In practice, how...
CQM: Cyclic Qubit Mappings
Maxwell Poster, Sayam Sethi, Jonathan Baker·Feb 23, 2026
Quantum computers show promise to solve select problems otherwise intractable on classical computers. However, noisy intermediate-scale quantum (NISQ) era devices are currently prone to various sources of error. Quantum error correction (QEC) shows p...
Energy gap of quantum spin glasses: a projection quantum Monte Carlo study
L. Brodoloni, G. E. Astrakharchik, S. Giorgini +1 more·Feb 23, 2026
The performance of quantum annealing for combinatorial optimization is fundamentally limited by the minimum energy gap $Δ$ encountered at quantum phase transitions. We investigate the scaling of $Δ$ with system size $N$ for two paradigmatic quantum s...
The quantum superluminality in the tunnel-ionization process of H-like atoms
Ossama Kullie, Igor A. Ivanov·Feb 23, 2026
The quantum tunneling time remains the subject of heated debate, and one of its most curious features is faster-than-light or superluminal tunneling. Our tunnel-ionization model of the time-delay, presented in previous work, shows good agreement with...
Nonlinear quantum optomechanics in a Fano-mirror microcavity system
Lei Du, Juliette Monsel, Witlef Wieczorek +1 more·Feb 23, 2026
We study a Fano-mirror optomechanical system in the quantum nonlinear regime. In this system, two strongly lossy optical modes hybridize through both coherent and dissipative couplings to form an effective optical mode with a drastically reduced line...
Entanglement formation in two-dimensional materials within microcavity
Fabricio Danel Matias, Facundo Arreyes, Juan Sebastián Ardenghi·Feb 23, 2026
In this work, the entanglement generation between two hexagonal-lattice layers embedded in a microcavity is studied, accounting for both electromagnetic coupling and intrinsic spin-orbit interaction (SOI). Utilizing a short-time dynamical approach, w...
trainsum -- A Python package for quantics tensor trains
Paul Haubenwallner, Matthias Heller·Feb 23, 2026
We present trainsum, a versatile Python package for doing computations with multidimensional quantics tensor trains: https://github.com/fh-igd-iet/trainsum. Using the Array API standard together with opt_einsum, trainsum allows the effortless approxi...
Spectroscopy of the Dirac oscillator perturbed by a surface delta potential
J. Munárriz, F. Domínguez-Adame, R. P. A. Lima·Feb 23, 2026
We study theoretically the level shift of the Dirac oscillator perturbed by any sharply peaked potential approaching a surface delta potential. A Green function method is used to obtain closed expressions for all partial waves and parities.
Quantum correlation and coherence in a mononuclear nickel-based molecular Magnet
S. Bhuvaneswari, R. Muthuganesan, R. Radha·Feb 23, 2026
We investigate the behaviors of thermal entanglement, quantum correlation beyond entanglement namely, measurement-induced nonlocality (MIN) and coherence in a nickel radical molecular magnet (Et3NH)[Ni(hfac)2L], whose spin-spin interactions are well ...
Electrical post-fabrication tuning of aluminum Josephson junctions at room temperature
Christian Križan, Maurizio Toselli, Irshad Ahmad +11 more·Feb 23, 2026
Josephson junctions are a key element of superconducting quantum technology, serving as the core building blocks of superconducting qubits. We present an experimental study on room-temperature electrical tuning of aluminum junctions, showing that vol...
A Quantum Internet Protocol Suite Beyond Layering
Angela Sara Cacciapuoti, Marcello Caleffi·Feb 23, 2026
Layering, the protocol organization principle underpinning the classical Internet, is ill-suited to the Quantum Internet, built around entanglement, which is non-local and stateful. This paper proposes a quantum-native organizational principle based ...
GAP Measures and Wave Function Collapse
Roderich Tumulka·Feb 23, 2026
GAP measures (also known as Scrooge measures) are a natural class of probability distributions on the unit sphere of a Hilbert space that come up in quantum statistical mechanics; for each density matrix $ρ$ there is a unique measure GAP$_ρ$. We desc...
Two components relativistic quantum wave equation for scalar bosons
Roland Combescot·Feb 23, 2026
We show that, in the relativistic regime, scalar bosons satisfy a quantum wave equation which is quite analogous to the Dirac equation. In contrast with the Klein-Gordon equation it is first order with respect to time derivation. It leads in a regula...
Heat flow through the quantum heat valve coupled to ohmic baths via a master equation approach
Antti Vaaranta, Marco Cattaneo, Paolo Muratore-Ginanneschi +1 more·Feb 23, 2026
We provide a theoretical model for the non-equilibrium steady state heat flow through a quantum heat valve. The model is based on a master equation approach, where the partial secular approximation has been carefully performed in order to obtain accu...
Rapid state-resolved single-atom imaging of alkaline-earth fermions
Thies Plassmann, Leon Schaefer, Meny Menashes +1 more·Feb 23, 2026
Local Hilbert spaces with large dimension are of key interest for quantum information with applications in quantum computing and memories, quantum simulations and metrology. Thanks to its weak coupling to external perturbations, the large ground-stat...
Separation of the Kibble-Zurek Mechanism from Quantum Criticality
R. Jafari, Alireza Akbari·Feb 23, 2026
When a system is swept through a quantum critical point (QCP), the Kibble-Zurek mechanism predicts that the average number of topological defects follows a universal power-law scaling with the ramp time scale. This scaling behavior is determined by t...
High-resolution spectroscopy of 162Dy Rydberg levels
G. Ferioli, P. Lombardi, P. Sekhar +9 more·Feb 23, 2026
Highly excited Rydberg states of lanthanides are a promising, yet largely unexplored, playground for quantum studies. Here, we report on the first high-resolution spectroscopy of 162Dy obtained by two-color trap depletion spectroscopy in a magneto-op...
Floquet product mode and eigenphase order
Felix Möckel, Harald Schmid, Felix von Oppen·Feb 23, 2026
We study the robustness of the Floquet quantum Ising model against integrability-breaking perturbations, focusing on the phase hosting both Majorana zero and $π$ modes. A recent work [Phys. Rev. B 110, 075117, (2024)] observed that the Floquet produc...