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◌ Quantum Computing
The Smartest Quantum Computing Stock to Buy for 2026 - The Motley Fool

The Smartest Quantum Computing Stock to Buy for 2026 The Motley Fool

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◌ Quantum Computing
Prediction: Quantum Computing, IonQ, Rigetti, and D-Wave Will Crash In 2026. Here's What You Should Buy Instead - The Motley Fool

Prediction: Quantum Computing, IonQ, Rigetti, and D-Wave Will Crash In 2026. Here's What You Should Buy Instead The Motley Fool

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◌ Quantum Computing
A Block Belief-Propagation Algorithm for the Contraction of Tensor-Networks

arXiv:2603.13304v1 Announce Type: new Abstract: Simulating many-body quantum systems on a classical computer is difficult due to the large number of degrees of freedom, causing the computational compl…

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◌ Quantum Computing
Modeling Energy Relaxation via Quantum Thermalization: A Superconducting Qubit Coupled to a Many-Body TLS System

arXiv:2603.13322v1 Announce Type: new Abstract: While two-level systems (TLS) in superconducting qubits are known to introduce phonon-mediated energy dissipation channels, many-body TLS systems themse…

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◌ Quantum Computing
A stabilizer $\mathrm{AME}(4,6)$ state does not exist

arXiv:2603.13442v1 Announce Type: new Abstract: We prove the non-existence of stabilizer absolutely maximally entangled states for systems of four six-dimensional qudits.

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◌ Quantum Computing
Algebraic Structure of Quantum Controlled States and Operators

arXiv:2603.13454v1 Announce Type: new Abstract: Quantum control is an important logical primitive of quantum computing programs, and an important concept for equational reasoning in quantum graphical …

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◌ Quantum Computing
Characterization of Radiation-Induced Errors in Superconducting Qubits Protected with Various Gap-Engineering Strategies

arXiv:2603.13460v1 Announce Type: new Abstract: Impacts from high-energy particles cause correlated errors in superconducting qubits by increasing the quasiparticle density in the vicinity of the Jose…

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◌ Quantum Computing
Hadamard regularization of open quantum systems coupled to unstructured environments in the Schwinger-Keldysh formalism

arXiv:2603.13462v1 Announce Type: new Abstract: The theory of open quantum systems addresses how coupling to external degrees of freedom modifies observables and quantum coherence, a situation central…

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◌ Quantum Computing
Agnostic Dynamical Decoupling for Single-Qubit Gates

arXiv:2603.13477v1 Announce Type: new Abstract: We introduce a method for designing smooth single-qubit control pulses that implement a desired gate while suppressing the effect of unknown static erro…

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◌ Quantum Computing
A Chip-Scale Transmitter Module for Real-Time Continuous-Variable QKD

arXiv:2603.13483v1 Announce Type: new Abstract: Continuous-variable quantum key distribution (CV-QKD) enables secure communication over standard telecom infrastructure, yet its scaling is stalled by b…

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◌ Quantum Computing
Distance learning from projective measurements as an information-geometric probe of many-body physics

arXiv:2603.13485v1 Announce Type: new Abstract: The ability of modern quantum simulators--both digital and analogue--to generate large ensembles of single-shot projective "snapshots" has opened a data…

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◌ Quantum Computing
Qubit syndrome measurements with a high fidelity Rb-Cs Rydberg gate

arXiv:2603.13492v1 Announce Type: new Abstract: We demonstrate an inter-species entangling Rydberg gate between rubidium (Rb) and cesium (Cs) atoms with fidelity $\mathcal F = 0.975\pm 0.002$. The two…

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◌ Quantum Computing
Resource-Optimal Importance Sampling for Randomized Quantum Algorithms

arXiv:2603.13495v1 Announce Type: new Abstract: Randomized protocols are procedures that incorporate probabilistic choices during their execution and they play a central role in quantum algorithms, sp…

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◌ Quantum Computing
Perspective: Interactions and Nonlinearity in Non-Hermitian Physics

arXiv:2603.13526v1 Announce Type: new Abstract: For decades, Hermiticity was considered an immutable axiom of quantum mechanics, essential for ensuring real energies and unitary evolution. This perspe…

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◌ Quantum Computing
Active Sampling Sample-based Quantum Diagonalization from Finite-Shot Measurements

arXiv:2603.13536v1 Announce Type: new Abstract: Near-term quantum devices provide only finite-shot measurements and prepare imperfect, contaminated states. This motivates algorithms that convert sampl…

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◌ Quantum Computing
Quantum Process Realization of LDPC Code Dualities and Product Constructions

arXiv:2603.13538v1 Announce Type: new Abstract: We realize a broad class of code constructions, including Kramers-Wannier duality, tensor product, and check product, as quantum processes consisting of…

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◌ Quantum Computing
Bit-Vector Abstractions to Formally Verify Quantum Error Detection & Entanglement

arXiv:2603.13554v1 Announce Type: new Abstract: We present a scalable formal verification methodology for Quantum Phase Estimation (QPE) circuits. Our approach uses a symbolic qubit abstraction based …

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◌ Quantum Computing
The Quest for Quantum Advantage in Combinatorial Optimization: End-to-end Benchmarking of Quantum Solvers vs. Multi-core Classical Solvers

arXiv:2603.13607v1 Announce Type: new Abstract: We perform an end-to-end benchmark of a hybrid sequential quantum computing (HSQC) solver for higher-order unconstrained binary optimization (HUBO), exe…

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◌ Quantum Computing
Quantum contextuality with mixed states of 1D symmetry-protected topological order

arXiv:2603.13626v1 Announce Type: new Abstract: Bell theorems of many-body nonlocality and contextuality serve as a benchmark for proving quantum advantage in that a quantum computer outperforms a cla…

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◌ Quantum Computing
Residual quantum correlations and non-Markovian noise

arXiv:2603.13648v1 Announce Type: new Abstract: Wu et al. introduced residual quantum correlations (RQC) in 2015 and defined them in terms of two complementary bases. Given a measure for classical cor…

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◌ Quantum Computing
Quantum dial

arXiv:2603.13653v1 Announce Type: new Abstract: Accurate control of quantum degrees of freedom is promising for sensing, communication, and computing, but building a useful quantum computer faces a ce…

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◌ Quantum Computing
Thermodynamic Limits of Quantum Search

arXiv:2603.13654v1 Announce Type: new Abstract: Modern cryptography relies on keyed symmetric ciphers to ensure the secrecy and authenticity of high bandwidth data transfer. While the advent of quantu…

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◌ Quantum Computing
Quantum Correlations and Entanglement in Generalized Dicke-Ising Models

arXiv:2603.13693v1 Announce Type: new Abstract: Quantum systems inside high-Q cavities offer an excellent testbed for the control of emergent symmetries induced by light and their interplay with quant…

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◌ Quantum Computing
Optimal Distillation of Non-Markovianity: Bounds, Multi-Copy Gain, and the Weak-to-Essential Transition

arXiv:2603.13712v1 Announce Type: new Abstract: Quantum channels generally reduce the distinguishability of quantum states, limiting information transmission and processing. Previous work introduced a…

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