1028 papers
This paper demonstrates that massless scalar fields in a rotating Teo wormhole undergo stationary particle creation and entanglement via geometrically induced, asymmetric vacuum mode mixing, which acts as a non-dynamical analogue of the Asymmetric Dynamical Casimir Effect driven by frame dragging rather than time-dependent boundaries.
This paper introduces a general framework featuring a task-specific resource impact functional and associated bounds to operationally quantify and isolate the maximal influence of quantum resources on specific chemical dynamics and observables.
This paper introduces a modified infinite time-evolving block decimation (iTEBD) algorithm that constructs time-invariant process tensors with significantly improved computational scaling () and reduced memory requirements, enabling the exact simulation of long-time, non-Markovian dynamics in high-dimensional open quantum systems previously considered numerically intractable.
This paper presents a novel technique for characterizing superconducting qubit frequency noise by converting it into photon loss within a coupled high-quality cavity, enabling the detection of high-frequency noise processes beyond the reach of conventional qubit-based spectroscopy through the use of a long-lived cavity photon and post-selected mid-circuit measurements.
This study employs a numerically exact hybrid MPS-HEOM approach to demonstrate that in disordered molecular polariton systems, phonon timescales and dynamic disorder govern the activation of dark states and determine the critical system size () required to reach the thermodynamic limit by suppressing collective light-matter dynamics.
Qronecker is a certifiable, cut-aware low-rank Kronecker decomposition algorithm that operates in Pauli coefficient space to compress quantum-chemistry Hamiltonians without forming dense matrices, providing instance-specific compressibility curves and state-independent energy deviation bounds to guide adaptive rank and cut selection for efficient quantum processing.
This paper proposes that moire excitons in two-dimensional superlattices exhibit cooperative quantum optical phenomena, such as tunable superradiant and subradiant states and extreme optical switching, driven by their real-space lattice structure and controllable via electric fields, strain, or twist angle adjustments.
This paper demonstrates that determining whether finite extensions of Generalised Probabilistic Theories (GPTs) involving dynamics or entanglement are consistent with the theory's axioms is an undecidable problem, as it is computationally equivalent to the halting problem due to the infinite conditions generated by iterating transformations and entangled states.
This paper systematically investigates quantum phase transitions in sub-Ohmic spin-boson systems with three competing terms using variational calculations, revealing a rich phase diagram that includes a novel U(1)-symmetric phase and a multi-stage transition sequence at low tunneling strengths, thereby extending beyond conventional spin-boson physics.
This paper extends a projective circuit quantisation approach to incorporate superconducting Higgs modes by deriving and numerically validating analytical results for the gap dynamics' mass, spring constant, and frequency, while also computing anharmonic corrections for small superconducting islands.
This paper introduces an efficient local-to-global reconstruction framework that combines local shadow tomography with convex optimization to characterize multi-qubit quantum channels, proving that sample complexity scales polynomially with system size under the assumption of exponentially decaying correlations and demonstrating accurate recovery of global diagnostics for systems up to 50 qubits.
This paper presents highly accurate *ab initio* adiabatic potential energy surfaces and non-adiabatic couplings for the four low-lying singlet states of ozone, constructed using advanced multi-reference methods to reproduce experimental dissociation energies and frequencies, locate conical intersections, and provide a four-state diabatic Hamiltonian free of "reef" features.
This paper extends the Curie-Weiss model of quantum measurement from spin-1/2 to spin-1 systems by deriving and numerically evaluating the detailed dynamics of measuring the -component, including the associated macroscopic energy costs.
This paper investigates non-Hermitian quasiperiodic localization transitions using semiclassical Husimi dynamics and finds that, unlike their Hermitian counterparts, the critical points do not universally align with classical phase-space predictions due to a sensitive dependence on the irrational parameter, though a faithful classical-quantum mimicry can still be achieved within specific parameter regimes and finite time windows.
This paper challenges the conventional assumption of the Krylov basis's optimality by demonstrating that higher-order generators can be constructed to minimize Krylov complexity more effectively than the standard first-order approach, thereby necessitating a reconsideration of previous results in the field.
This paper demonstrates the achievement of approximately one-hour storage lifetimes for two-qubit entangled logical states encoded in the decoherence-free subspaces of four cryogenic ions, utilizing crosstalk-free sympathetic cooling and multi-state detection to suppress errors and validate the advantages of second-order DFS against spatially nonuniform noise.
This paper derives a gauge-invariant noncommutative Hamiltonian for graphene in a magnetic field to analytically determine its deformed Landau levels and thermal properties, such as free energy and specific heat, using zeta function regularization.
This paper predicts and analytically characterizes boundary-driven exceptional points in semi-infinite Hermitian photonic waveguide lattices with a side-coupled defect, demonstrating how coherent reflections induce non-Markovian memory effects that enable precise tuning of resonance coalescence through the defect's position and coupling strength.
This paper introduces the numerical invariants of root activity and root curvature to derive sharper, dimension-free complexity bounds for Hamiltonian simulation within unitary representations of Lie algebras, demonstrating their effectiveness through a root-gate circuit model applied to spin-chain systems.
This paper investigates the inductive coupling between a quantum LC resonator and a graphene-based Josephson junction, revealing that the system's current-phase relation can exhibit spontaneous time-reversal symmetry breaking and predicting the low-energy spectrum of hybridized light-matter excitations.