Probing the quantum phase transition in the Dicke model through mechanical vibrations

Probing the quantum state of a guided atom laser pulse

Probing the quantumness of channels with mixed states

Probing the qudit depolarizing channel

Probing the spacetime structure of vacuum entanglement

Probing the Vacuum Induced Coherence in a $Λ$-system

Probing tiny motions of nanomechanical resonators: classical or quantum mechanical?

Problems about Causality in Fermi's Two-Atom Model and Possible Resolutions

Problems and Aspects of Energy-Driven Wavefunction Collapse Models

Problems and paradoxes of the Lifshitz theory

Problems in realization of large-scale ensemble silicon-based NMR quantum computers

Problems in the Lifshitz Theory of Atom-Wall Interaction

Problems in the theory of thermal Casimir force between dielectrics and semiconductors

Problems of Existing Unconditional Security Proofs in Quantum Key Distribution

Problems of Quantum Measurement

Problems of the CASCADE Protocol and Renyi Entropy Reduction in Classical and Quantum Key Generation

Problems with modelling closed timelike curves as post-selected teleportation

Problems with Probability in Everett's Interpretation of Quantum Mechanics

Proca equations derived from first principles

Procedures for Converting among Lindblad, Kraus and Matrix Representations of Quantum Dynamical Semigroups