Tag: Quantum
Method speeds up TDDFT calculations for XRTS analysis
What the study found The study found a broadly applicable method for improving the efficiency of time-dependent density functional theory (TDDFT) calculations used to model X-ray Thomson scattering (XRTS) and related dynamic material properties. The authors report speed-ups of up to an order of magnitude without introducing any significant bias. Why the authors say this…
Bootstrap bounds constrain supersymmetric quantum mechanics
What the study found The study found that the quantum-mechanics bootstrap can be applied to supersymmetric quantum mechanics (SUSY QM) and to the Marinari-Parisi matrix model, producing rigorous bounds on ground-state data. In cases where supersymmetry is spontaneously broken, the bounds apply to the lowest-energy normalizable eigenstate. Why the authors say this matters The authors…
Explainable quantum AI predicted vehicular energy use in smart cities
Quantum machine learning combined with explainable AI improves energy prediction for autonomous electric vehicles while ensuring transparent, trustworthy decision-making in smart city operations.
Noisy quantum circuits can behave like shallow circuits
Theoretical analysis of how local noise restricts quantum circuits to shallow depths and prevents barren plateaus, enabling efficient classical simulation of observable expectation value estimation.
Formal expressions for reduced densities in thermofield dynamics
Framework for computing reduced density matrices and Wigner distributions in thermofield dynamics using inverse Bogoliubov transformations, with applications to thermal quantum systems.
Non-Gaussian measurements enable near-optimal coherent state discrimination
Study demonstrates that non-Gaussian continuous quantum measurements can achieve near-optimal coherent state discrimination, surpassing traditional Gaussian limits without requiring photon detection.
Steady-state electrical power scales super-linearly in a quantum battery
Microcavity quantum battery demonstrates superextensive steady-state electrical power generation via strong light-matter coupling under low-intensity illumination.
Quantum data centres may support scalable quantum networking
Quantum data centres overcome NISQ limitations through distributed quantum computing, leveraging entanglement orchestrators for dynamic network reconfiguration toward large-scale quantum internet.
