Science – Page 40

Taming Quantum Noise in Nanobeams

10.11.2025 by pricpr

New research explores how boundary conditions influence quantum behavior in nanoscale resonators, potentially enabling more stable quantum computing.

Quantum Evolution: A New Approach to Optimization

10.11.2025 by pricpr

Across varying computational depths and generational limits—spanning 10, 30, and 50 generations—a quantum gate set leveraging superposition consistently outperformed a classical gate set in optimizing the Rastrigin function, as demonstrated through an average of 5000 independent trials, suggesting an inherent advantage in quantum computation for complex function optimization.

Harnessing the power of quantum mechanics, researchers have developed a genetic algorithm that explores solution spaces with unprecedented efficiency.

Bridging the Quantum and Classical Worlds

10.11.2025 by pricpr

A system’s interaction with both classical and quantum environments inevitably introduces competing timescales—here, a hybrid Redfield-MASH method acknowledges this by treating nonadiabatic coupling to classical degrees of freedom distinctly from secular dissipation into a Markovian quantum bath, a distinction that foreshadows the inevitable emergence of unpredictable behavior.

A new method accurately simulates the interplay between quantum and classical dynamics in complex molecular systems.

Twisting Reality: Quantum Control Through Surface Geometry

10.11.2025 by pricpr

A finite section of twisted cylinder, embedded within an infinite free space, presents a scattering problem wherein interactions are dictated by the geometry of this bounded region.

New research reveals how manipulating the shape of a surface can subtly alter quantum wavefunctions without changing their energy.

Beyond Equilibrium: When Measurement Changes Everything

10.11.2025 by pricpr

The two-dimensional coarse-grained dissipative hydrodynamics model (CDHM) utilizes a square lattice structure where strong couplings, denoted by thick red bonds, define interactions with a strength of <i>gg</i>, differentiating them from the remaining bonds with unit strength.

New research reveals how continuous observation can drive phase transitions in quantum systems, even without external forces.