%0 Generic %1 citeulike:158948 %A Dhar, Deepak %A Grover, Lov K. %A Roy, Shasanka M. %D 2005 %K effect quantum zeno %T Preserving Quantum States : A Super-Zeno Effect %U http://arxiv.org/abs/quant-ph/0504070 %X We consider a quantum mechanical state initially in a subspace $P$ of the full Hilbert space of the system and subjected to a sequence of appropriately spaced short-duration pulses. In between the pulses, the evolution of the system is governed by its Hamiltonian. The pulse adds a phase $\pi$ to the vectors in the subspace $P$. We construct a sequence of $N$ pulses within a finite time interval $T$ such that the probability of finding the system outside $P$ at $T$ can be made as small as $2^- (łog_2 N)^2$, for large $N$.

@misc{citeulike:158948, abstract = {We consider a quantum mechanical state initially in a subspace ${\mathcal{P}}$ of the full Hilbert space of the system and subjected to a sequence of appropriately spaced short-duration pulses. In between the pulses, the evolution of the system is governed by its Hamiltonian. The pulse adds a phase $\pi$ to the vectors in the subspace ${\mathcal{P}}$. We construct a sequence of $N$ pulses within a finite time interval $T$ such that the probability of finding the system outside ${\mathcal{P}}$ at $T$ can be made as small as $2^{- (\log_2 N)^{2}}$, for large $N$.}, added-at = {2007-08-18T13:22:24.000+0200}, author = {Dhar, Deepak and Grover, Lov K. and Roy, Shasanka M.}, biburl = {https://www.bibsonomy.org/bibtex/23e13c92a5068746ce565bb0215e4b52d/a_olympia}, citeulike-article-id = {158948}, description = {citeulike}, eprint = {quant-ph/0504070}, interhash = {e60b0aae0069eac4edda97acf6183b36}, intrahash = {3e13c92a5068746ce565bb0215e4b52d}, keywords = {effect quantum zeno}, month = {April}, priority = {2}, timestamp = {2007-08-18T13:22:52.000+0200}, title = {Preserving Quantum States : A Super-Zeno Effect}, url = {http://arxiv.org/abs/quant-ph/0504070}, year = 2005 }