✦ LIBER ✦

Quantum Zeno Effect, Nuclear Conversion and Photoionization in Solids

✍ Scribed by A.D. Panov

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 677 KB
Volume: 249
Category: Article
ISSN: 0003-4916
DOI: 10.1006/aphy.1996.0063

No coin nor oath required. For personal study only.

✦ Synopsis

The quantum Zeno effect in continuous passive observation of radioactive decay is described starting from the first principles''. It is argued, that in this case the quantum Zeno effect reduces to the influence of inelastic scattering of decay products in surrounded media to decay constant. A new class of quantum Zeno effects is introduced, which are named as threshold quantum Zeno effects'' (TQZE). It is shown, that TQZE could explain recently discovered deep suppression of the conversion decay of 1Â2 + -isomer of uranium-235 in the lattice of silver. TQZE predicts also some new phenomena, which may be observed in the nearthreshold behavior of atomic photoionization cross-sections. Possible experimental manifestations of this new phenomena are discussed.

📜 SIMILAR VOLUMES

Driven Appearance and Disappearance of Q

Driven Appearance and Disappearance of Quantum Zeno Effect in the Dynamics of a Four-level Trapped Ion

✍ B. Militello; A. Messina; A. Napoli 📂 Article 📅 2001 🏛 John Wiley and Sons 🌐 English ⚖ 92 KB 👁 2 views

An example of constrained unitary quantum dynamics in the context of trapped ions is given. We study a laser driven four-level ion system confined in an isotropic three-dimensional Paul microtrap. Our main result is that when two independent controllable continuous measurement processes are simultan

Multiple Quantum Dynamics in Linear Chai

Multiple Quantum Dynamics in Linear Chains and Rings of Nuclear Spins in Solids at Low Temperatures

✍ E.B Fel'dman; I.I Maximov 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 155 KB

Multiple quantum spin dynamics is studied using analytical and numerical methods for one-dimensional finite systems of nuclear spins 12 coupled by dipole-dipole interactions at low temperatures. Exact expressions for intensities of multiple quantum coherences at low temperatures were obtained in the

The Effect of the Electron–Longitudinal

The Effect of the Electron–Longitudinal Optical Phonon Interaction on the Photoionization in Quantum Well Wires

✍ A. Sali; M. Fliyou; H. Loumrhari 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 256 KB 👁 2 views

Quantum fluid-solid transition in a simp

Quantum fluid-solid transition in a simple variational approach II. Effects of overlap and exchange

✍ M de Llano; B Pimentel; S Ramírez 📂 Article 📅 1975 🏛 Elsevier Science 🌐 English ⚖ 754 KB

A Soluble Pentacene Precursor: Synthesis

A Soluble Pentacene Precursor: Synthesis, Solid-State Conversion into Pentacene and Application in a Field-Effect Transistor

✍ Peter T. Herwig; Klaus Müllen 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 153 KB 👁 2 views

Spin-lattice relaxation of spin-½ nuclei

Spin-lattice relaxation of spin-½ nuclei in solids containing diluted paramagnetic impurity centers. II. Dynamic polarization of nuclear spin system by thermal mixing and solid-state effect

✍ E.C. Reynhardt 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 237 KB 👁 1 views

## Abstract Dynamic nuclear polarization of nuclear spins via the solid‐state and thermal mixing effects is discussed. Continuous‐wave S‐ and X‐band microwave radiation have been employed to measure ^13^C signal enhancements and polarization times for ^13^C nuclei in a natural type Ib diamond as a