1091 papers
This paper proposes a scheme using a single two-level quantum emitter embedded in a chiral waveguide with second-order dispersion to achieve high-fidelity photon-photon gates, demonstrating numerically optimized control-Z gate fidelities up to 99.2% and deterministic Bell-state analyzer success probabilities up to 99.6% through repeated scattering.
This paper investigates an open Sachdev-Ye-Kitaev model coupled to a pseudogapped fermionic bath using the Keldysh formalism, revealing a rich dynamical phase diagram where non-Markovian dissipation competes with internal chaos to produce distinct regimes of power-law and exponential relaxation, as well as an intermediate crossover phase.
This paper establishes a formal equivalence between the Lindblad equation and Path Integral Molecular Dynamics (PIMD), demonstrating how PIMD can be utilized to simulate the non-equilibrium time evolution and convergence of ensemble-averaged observables in large atomic systems without explicitly solving the Lindblad equation, while ensuring the physical consistency of the density operator's positivity.
This paper proposes a Hamiltonian-based entanglement distillation protocol that leverages intrinsic analog many-body dynamics and information scrambling to achieve high-fidelity entanglement on current quantum platforms, thereby circumventing the complex circuit control and high hardware demands of conventional digital approaches.
This paper demonstrates that a star topology maximizes the early-time charging power of interacting fermionic quantum batteries, establishing hub-and-spoke architectures as an optimal design for scalable, fast-charging platforms.
This paper introduces "quantum telepathy" as a near-term application of quantum entanglement that leverages Bell's theorem to solve real-world decision coordination problems under communication constraints, such as high-frequency trading and distributed networks, using existing NISQ hardware.
This review provides a comprehensive overview of quantum hypergraph states, covering their mathematical foundations, entanglement properties, nonclassical features, and applications in quantum error correction and measurement-based quantum computation, while also extending the discussion to higher-dimensional systems.
This paper introduces Hybridlane, an open-source software development kit that enables unified, scalable programming of hybrid continuous-discrete variable quantum circuits through automatic wire type inference, backend-agnostic gate semantics, and compatibility with both classical simulators and ion trap hardware.
This study demonstrates that while chiral molecular potentials in superconducting Josephson junctions have minimal impact on equilibrium charge supercurrents, they induce distinct, anisotropic spin-polarized supercurrents dependent on molecular handedness, thereby establishing spin-polarized Josephson interferometry as a sensitive platform for detecting molecular chirality and advancing superconducting spintronics.
This paper introduces Variational Adaptive Gaussian Decomposition (VAGD), a scalable, quadrature-free framework that utilizes an autoencoder-decoder neural network to optimize Gaussian wave packet parameters, thereby enabling systematic improvements from thawed Gaussian approximations to full quantum mechanical dynamics through time-sliced semiclassical propagation.
This paper presents an efficient implementation of the Quantum Minimally Entangled Typical Thermal States (QMETTS) algorithm for gauge theories at finite temperature and density, featuring derived measurement bases to preserve gauge invariance, a noise-robust sampling method for expectation values, and numerical validation on a (1+1)-dimensional model.
This paper introduces a paradigm shift in Quantum Monte Carlo simulations by replacing the partition function with a generalized reduced-density-matrix (GRDM) as the sampled object, thereby overcoming measurement bottlenecks to enable the direct and efficient extraction of off-diagonal dynamical observables and mixed-state correlators.
This paper refutes the "all-or-nothing" expectation for local commuting charges in non-Hermitian bosonic chains by constructing explicit counterexamples with selective k-local charges, thereby demonstrating the limited universality of the Grabowski–Mathieu integrability test and providing a complete classification of such models.
This paper investigates permutation-invariant quantum error-correcting codes for qudits by extending deletion error correction conditions, numerically analyzing block length scaling against code distance, and proposing a semi-analytic construction that demonstrates the benefits of higher physical local dimensions in approaching fundamental bounds.
This paper introduces the Boson Sampling Born Machine (BSBM) as a generative model that can be trained classically while remaining hard to simulate quantumly, demonstrating that universality can be achieved through specific architectural expansions and postprocessing techniques without sacrificing the efficiency of classical training or the hardness of classical sampling.
This paper demonstrates that combining model-based qubit frequency optimization with a novel crosstalk transition suppression (CTS) pulse shaping technique effectively mitigates crosstalk errors in simultaneous single-qubit gates on a 49-qubit superconducting processor, achieving 99.96% fidelity and reducing frequency bandwidth constraints to facilitate scaling to larger quantum systems.
This paper establishes a rigorous framework for quantum-to-classical correspondence in Krylov complexity by defining appropriate operators and states that ensure the classical Krylov space emerges as the limit of the quantum one, thereby providing a foundation for analyzing complexity and ergodicity in unitary evolutions through classical dynamical notions.
This paper proposes a quantum simulation scheme using ultracold atoms in optical lattices to realize the three-band Emery model, enabling the study of high-temperature superconductivity in cuprates and nickelates on system sizes that are currently inaccessible to numerical methods.
This paper proposes a continuous-time, dissipative Markov dynamics driven by local two-body swap operators that asymptotically drives a network of quantum systems to permutation-invariant states, enabling applications such as global pure state generation and network size estimation.
This paper demonstrates that a specific subclass of Goldilocks quantum cellular automata is integrable and mappable to free fermions through two distinct proofs, enabling classical simulation and providing a tunable parametric circuit for testing quantum hardware, while contrasting these with typically non-integrable variants that still conserve a quantity useful for error mitigation.