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10 Quantum Computing Startups to Watch 2026 StartUs Insights

Quantum Computing Stocks: Separating Hype From Reality in 2026 Yahoo Finance

PsiQuantum Announces Leadership Shift as It Targets 2026 Utility-Scale Quantum Computing Deployment Quantum Zeitgeist

The quantum era is coming. Are we ready to secure it? blog.google

Los Alamos Forms Quantum Computing-Focused Research Center The Quantum Insider

2 Top Quantum Computing Stocks to Buy in 2026 The Motley Fool

arXiv:2603.15704v1 Announce Type: new Abstract: We develop a Schr\"{o}dinger-picture formulation for a scalar quantum field driven by a Lorentz-invariant white-noise field. The quantum state of the sy…

arXiv:2603.15720v1 Announce Type: new Abstract: Janus states, defined as coherent superpositions of two single-mode squeezed vacua, provide a simple but genuinely non-Gaussian setting for studying how…

arXiv:2603.15733v1 Announce Type: new Abstract: How can we use a quantum computer to detect the entanglement structure of a quantum state? Bouland et al. (2024) recently provided an algorithm that, gi…

arXiv:2603.15742v1 Announce Type: new Abstract: Noise sensing underlies many physical applications including tests of non-classicality, thermometry, verification of correlated phases of quantum matter…

arXiv:2603.15743v1 Announce Type: new Abstract: In the theory of decoherence, redundancy is the correlation between a quantum system and fractions of the environment. It underlies the emergence of cla…

arXiv:2603.15744v1 Announce Type: new Abstract: Information-theoretic phase transitions, such as the measurement-induced phase transition (MIPT), characterize the robustness of quantum dynamics to loc…

arXiv:2603.15753v1 Announce Type: new Abstract: Recent works on the decoherent histories formalism suggested that macroscopic quantities (extensive sums of local observables) in quantum many-body syst…

arXiv:2603.15756v1 Announce Type: new Abstract: The Harrow-Hassidim-Lloyd (HHL) algorithm is a quantum algorithm for solving systems of linear equations that, in principle, offers an exponential impro…

arXiv:2603.15758v1 Announce Type: new Abstract: We introduce crosstalk-robust gate sets, which are obtained using a novel, scalable optimal control problem exploiting locality. Through the suppression…

arXiv:2603.15760v1 Announce Type: new Abstract: Quantum error correction (QEC) is indispensable for scalable quantum computing, but implementing it with minimal hardware overhead remains a central cha…

arXiv:2603.15768v1 Announce Type: new Abstract: We study a minimal non-Hermitian trimer with latent symmetry formed by a cospectral pair of sites embedded in a three-site network with nonreciprocal co…

arXiv:2603.15792v1 Announce Type: new Abstract: Information-theoretic techniques are based on the assumption that resources are well characterized by independent and identically distributed (iid) stat…

arXiv:2603.15794v1 Announce Type: new Abstract: Adiabatic ground-state preparation is fundamentally limited by the spectral structure of the time-dependent Hamiltonian, particularly by gap reductions …

arXiv:2603.15804v1 Announce Type: new Abstract: The ability to perform high-fidelity quantum nondemolition qubit readout is pivotal for the realization of large and powerful quantum computers. Such re…

arXiv:2603.15820v1 Announce Type: new Abstract: The optimal regularization of infinite-dimensional degrees of freedom is a central open problem in the tractable simulation of lattice gauge theories on…

arXiv:2603.15870v1 Announce Type: new Abstract: We present a Riemannian optimization framework for Hartree-Fock theory formulated directly in the Sobolev space $H^1$. The orthonormality constraints ar…

arXiv:2603.15944v1 Announce Type: new Abstract: Quantum spectroscopy seeks to probe chemical systems using nonclassical light, which has properties that are qualitatively and quantitatively different …

arXiv:2603.16010v1 Announce Type: new Abstract: Open quantum walks (OQWs) constitute a class of quantum walks whose dynamics are entirely driven by interactions with the environment. It is well known …