Quantum Zeno effect in the decay onto an unstable level

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Enhanced quantum Zeno effect and bunching in the decay of interacting bosons from an unstable state

We theoretically study the decay of two interacting bosons from a leaky trap by tunneling through a potential barrier. Although decay rates are generally enhanced by repulsive interactions, we predict a strong suppression of the decay for short times. This leads to an enhancement of the quantum Zeno effect. Results from perturbation theory are supplemented by numerical calculations of the eigen...

متن کامل

Quantum Zeno effect in an unstable system with NMR

We theoretically propose a scheme for verification of quantum Zeno effect (QZE) to suppress a decay process with Nuclear Magnetic Resonance (NMR). Nuclear spins are affected by low frequency noise, and so one can naturally observe non-exponential decay behavior, which is prerequisite in observing QZE. We also describe that a key component for QZE, namely measurements on the nuclear spin, can be...

متن کامل

Quantum Zeno Effect, Instability, and Decay

Quantum Dynamics, encompassing all change in a Quantum system, is formulated in terms of states and their changes in time. In most cases, this evolution is given by either the Schroëdinger equation, or its equivalent in Heisenberg formulation. In addition to motion, it also describes transitions like the de-excitation of an atom accompanied by the emission of a photon, and like the photoelectri...

متن کامل

Unstable Systems and Quantum Zeno Phenomena in Quantum Field Theory

We analyze the Zeno phenomenon in quantum field theory. The decay of an unstable system can be modified by changing the time interval between successive measurements (or by varying the coupling to an external system that plays the role of measuring apparatus). We speak of quantum Zeno effect if the decay is slowed and of inverse quantum Zeno (or Heraclitus) effect if it is accelerated. The anal...

متن کامل

Understanding the quantum Zeno effect

The quantum Zeno effect consists in the hindrance of the evolution of a quantum system that is very frequently monitored and found to be in its initial state at every single measurement. On the basis of the correct formula for the survival probability, i.e. the probability of finding the system in its initial state at every single measurement, we critically analyze a recent proposal and experim...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physics Letters A

سال: 1999

ISSN: 0375-9601

DOI: 10.1016/s0375-9601(99)00290-x