Issues
Physics Update
Letters
Quantum Theory—Interpretation, Formulation, Inspiration
Search and Discovery
Organic Material Debuts as Both an Injection Laser and a Superconductor
By growing very pure crystals of the pentacene family and by devising an ingenious technique for charge injection, a Bell Labs team has gotten these organic materials to display wondrous properties.
Solid‐State NMR Reveals Key Structural Features of Membrane Transport Proteins
With carefully chosen pulse sequences, practitioners of solid‐state NMR are closing in on a much‐sought prize in structural biology: the ability to unravel the molecular structure of membrane transport proteins.
Theorists and Experimenters Seek to Learn Why Gravity Is So Weak
If gravity leaks out into macroscopic extra dimensions, we may soon find departures from the inverse‐square law at millimeter separations.
Pulse Shaping Improves Efficiency of Soft X‐Ray Harmonic Generation
Delicate sculpting of femtosecond laser pulses can yield dramatic effects in nonlinear light‐atom interactions.
Articles
Physics in the Whirlwind of Optical Communications
Accelerating demands for high‐speed communications are driving rapid innovations in lightwave communication, including versatile, high‐bandwidth fibers, sources, amplifiers, and switches.
DNA‐Inspired Electrostatics
Not just the repository of our genetic information, DNA is also a fascinating, shape‐shifting molecule whose behavior in solution counters our intuition and challenges our physical understanding.
Hot Prospects for Ultracold Molecules
Researchers have taken giant strides down several paths toward trapping molecules at submillikelvin temperatures. At the end of these paths lie the promise of more precise measurements and new phenomena.