If frequent measurements ascertain whether a quantum system is still in its initial state,
transitions to other states are hindered and the quantum Zeno effect takes place. However …

It was predicted that frequently repeated measurements on an unstable quantum state may
alter the decay rate of the state. This is called the quantum Zeno effect (QZE) or the anti …

The asymmetry of nature under a'reversal of time'(that is, a reversal of motion and change)
appears only too obvious to us, as it deeply affects our own form of existence. If physics is to …

In this revised and expanded edition, in addition to a comprehensible introduction to the
theoretical foundations of quantum tunneling based on different methods of formulating and …

The theory of quantum mechanics applies to closed systems. In such ideal situations, a
single atom can, for example, exist simultaneously in a superposition of two different spatial …

The quantum Zeno effect is recast in terms of an adiabatic theorem when the measurement
is described as the dynamical coupling to another quantum system that plays the role of …

We report the first observation of the quantum Zeno and anti-Zeno effects in an unstable
system. Cold sodium atoms are trapped in a far-detuned standing wave of light that is …

Nowadays it is becoming clearer and clearer that, in the description of natural phenomena,
the triadic scheme-microseopie, mesoscopic, macroscopic-is only a rough approximation …

Manipulating the state of a logical quantum bit (qubit) usually comes at the expense of
exposing it to decoherence. Fault-tolerant quantum computing tackles this problem by …

Topology is central to phenomena that arise in a variety of fields, ranging from quantum field
theory to quantum information science to condensed matter physics. Recently, the study of …