Unconditionally Secure Relativistic Quantum Bit Commitment

Unconditionally verifiable blind computation

Unconditionally-secure and reusable public-key authentication

Unconventional approach to orbital-free density functional theory derived from a model of extended electrons

Unconventional decay law for excited states in closed many-body systems

Unconventional geometric quantum computation

Unconventional geometric quantum phase gates with a cavity QED system

Unconventional Quantum Computing Devices

Uncoupling Which-Way Information from Interference: A Novel Interference Experiment using a Super-Focused Laser Beam

Undecidability and the problem of outcomes in quantum measurements

Undecidability as solution to the problem of measurement: fundamental criterion for the production of events

Undecidable classical properties of observers

Underbarrier interference

Underbarrier interference and Euclidean resonance

Underlining some limitations of the statistical formalism in quantum mechanics

Underlining some limitations of the statistical formalism in quantum mechanics: Reply to the Comment of Bodor and Diósi

Underlying Determinism, Stationary Phase and Quantum Mechnics

Understanding Bohmian mechanics: A dialogue

Understanding chemical reactions within a generalized Hamilton-Jacobi framework

Understanding destruction of nth-order quantum coherence in terms of multi-path interference