Papers
Live trends in quantum computing research, updated daily from arXiv.
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A Description of the Quantum Mpemba Effect using the Steepest-Entropy-Ascent Quantum Thermodynamics Framework
Luis Enrique Rocha-Soto, Cesar Eduardo Damian-Ascencio, Adriana Saldaña-Robles +1 more·Mar 25, 2026
The quantum Mpemba effect is a phenomenon characterized by an exponential relaxation from a non-equililbrium state to a steady state. This effect was predicted with an analysis of the Liouvillian superoperator and experimentally demonstrated in a thr...
Nonequilibrium phases and quantum correlations in synthetic transport models
Uddhav Sen, Federico Carollo, Sascha Wald·Mar 25, 2026
Quantum devices featuring mid-circuit measurement and reset capabilities, such as quantum computers and dual-species Rydberg quantum simulators, enable the realization of quantum cellular automata. These systems evolve in discrete time following loca...
Current Density Formulation of Nuclear Magnetic Shielding and Magnetizability Tensors in Paramagnetic Molecules in the Presence of Relativistic Effects
Francesco Ferdinando Summa, Sonia Coriani, Andre Severo Pereira Gomes·Mar 25, 2026
This work presents the computation of nuclear magnetic shielding and magnetizability tensors for paramagnetic molecules, using a magnetically induced current density framework to account for orbital and spin contributions. We demonstrate that the met...
Quantum walk with a local spin interaction
Manami Yamagishi, Naomichi Hatano, Kohei Kawabata +4 more·Mar 25, 2026
We introduce a model of quantum walkers interacting with a magnetic impurity localized at the origin. First, we study a model of a single quantum walker interacting with a localized magnetic impurity. For a simple case of parameter values, we analyti...
Benchmarking Techniques for Decoded Quantum Interferometry
Leon Bollmann, Maximilian Hess·Mar 25, 2026
We develop a new benchmarking scheme for the Decoded Quantum Interferometry (DQI) algorithm quantifying the number of quantum gates required to obtain an optimal solution to a problem amenable to DQI. We apply the benchmarking scheme to the Binary Pa...
Wavefunction Collapse in String Theory
Nissan Itzhaki·Mar 25, 2026
One of the most intriguing proposals for wavefunction collapse is the Diosi Penrose model, in which collapse is driven by stochastic fluctuations of the Newtonian potential. We argue that a closely related effective structure can emerge in string the...
Superconducting properties of lifted-off Niobium nanowires
A. Kotsovolou, F. Soofivand, P. Singha +7 more·Mar 25, 2026
Hybrid superconductor/semiconductor devices play a crucial role in advancing quantum science and technology by merging the properties of superconductors and semiconductors. To operate these devices at high temperature, Niobium could substitute the wi...
Fluctuation-induced symmetry breaking in high harmonic generation for bicircular quantum light
Philipp Stammer, Camilo Granados, Javier Rivera-Dean·Mar 25, 2026
Symmetries are ubiquitous in physics and play a pivotal role in light-matter interactions, where they determine the selection rules governing allowed atomic transitions and define the associated conserved quantities. For the up-conversion process of ...
Efficient photon-pair emission from a nanostructured resonator and its theoretical description
Michael Poloczek, Alberto Paniate, Attilio Zilli +12 more·Mar 25, 2026
Spontaneous parametric down-conversion (SPDC) in subwavelength nonlinear nanostructures is emerging as a promising source of quantum light, owing to its intrinsic multifunctionality and ability to generate versatile and complex quantum states. Despit...
Breakdown of the periodic potential ansatz in correlated electron systems
Wouter Montfrooij·Mar 25, 2026
Our electronic structure theory for crystalline solids is commonly built on the periodic potential assumption $V(\mathbf r)=V(\mathbf r+\mathbf R)$ for every lattice translation $\mathbf R$, enabling Bloch eigenstates, crystal momentum as a good quan...
Parametrized Version of the Generalized Aubry-André Model
Moorad Alexanian·Mar 25, 2026
A recently introduced recurrence-relation ansatz applied to the Bose-Hubbard model is here used in the generalized Aubry-Andre model. The resulting modified Aubry-Andre model allows for a simple parametrization of the solutions in terms of three para...
Robust Parametric Quantum Gate Against Stochastic Time-Varying Noise
Yang He, Zigui Zhang, Zibo Miao·Mar 25, 2026
The performance of quantum processors in the noisy intermediate-scale quantum (NISQ) era is severely constrained by environmental noise and other uncertainties. While the recently proposed quantum control robustness landscape (QCRL) offers a powerful...
Strong-to-Weak Spontaneous Symmetry Breaking in a $(2+1)$D Transverse-Field Ising Model under Decoherence
Yi-Ming Ding, Yuxuan Guo, Zhen Bi +1 more·Mar 25, 2026
Decoherence in many-body quantum systems can give rise to intrinsically mixed-state phases and phase transitions beyond the pure-state paradigm. Here we study the $(2+1)$D transverse-field Ising model subject to a strongly $\mathbb{Z}_2$-symmetric de...
Universal Quantum Suppression in Frustrated Ising Magnets across the Quasi-1D to 2D Crossover via Quantum Annealing
Kumar Ghosh·Mar 25, 2026
Quantum magnets in the $M\mathrm{Nb_2O_6}$ and BaCo$_2$V$_2$O$_8$ families realise frustrated transverse-field Ising models whose competing ferromagnetic and antiferromagnetic couplings generate a sign problem provably intractable for quantum Monte C...
SpinGQE: A Generative Quantum Eigensolver for Spin Hamiltonians
Alexander Holden, Moinul Hossain Rahat, Nii Osae Osae Dade·Mar 25, 2026
The ground state search problem is central to quantum computing, with applications spanning quantum chemistry, condensed matter physics, and optimization. The Variational Quantum Eigensolver (VQE) has shown promise for small systems but faces signifi...
Emergence of the Partial Trace from Classical Probability Theory
Andrés Macho Ortiz, Francisco Javier Fraile Peláez, José Capmany·Mar 25, 2026
The partial trace is commonly introduced in quantum mechanics as an algebraic operation used to define reduced states of composite systems. However, the probabilistic origin of this operation goes systematically unnoticed in the literature. Here, we ...
Time-frequency Talbot effect as Clifford operations on entangled time-frequency GKP states
Thomas Pousset, Romain Dalidet, Laurent Labonté +1 more·Mar 25, 2026
The Talbot effect -- a near-field diffraction phenomenon in which a periodic wavefront self-images at regular distances -- can be transposed to the time--frequency domain via the space--time duality between diffraction and dispersive broadening. We e...
Deletion Does Not Measure Contribution in Coupled-Channel Dynamics
Jin Lei, Hao Liu·Mar 25, 2026
In projected descriptions of quantum dynamics, the importance of an eliminated degree of freedom is routinely assessed by deleting it and measuring the system's response. This conflates two effects: the channel's intrinsic contribution and the reorga...
Implementing non-Abelian Hatano-Nelson model in electric circuits
Xiangru Chen, Jien Wu, Xingyu Chen +6 more·Mar 25, 2026
Non-Hermitian systems generally host complex spectra that bring unique spectral topologies, leading to the spectral braiding and non-Hermitian skin effect. The experimental exploration of non-Hermitian physics is mainly concentrated in artificial sys...
Correlated Atom Loss as a Resource for Quantum Error Correction
Hugo Perrin, Gatien Roger, Guido Pupillo·Mar 25, 2026
Atom loss is a dominant error source in neutral-atom quantum processors, yet its correlated structure remains largely unexploited by existing quantum error correction decoders. We analyze the performance of the surface code equipped with teleportatio...