Realization of generalized quantum searching using nuclear magnetic resonance

According to the theoretical results, the quantum searching algorithm can be generalized by replacing the Walsh-Hadamard(W-H) transform by almost any quantum mechanical operation. We have implemented the generalized algorithm using nuclear magnetic resonance techniques with a solution of chloroform molecules. Experimental results show the good agreement between theory and experiment.Comment: 11 pages,3 figure. Accepted by Phys. Rev. A. Scheduled Issue: 01 Mar 200

Grover Algorithm with zero theoretical failure rate

In standard Grover's algorithm for quantum searching, the probability of finding the marked item is not exactly 1. In this Letter we present a modified version of Grover's algorithm that searches a marked state with full successful rate. The modification is done by replacing the phase inversion by two phase rotation through angle $\phi$. The rotation angle is given analytically to be $\phi=2 \arcsin(\sin{\pi\over (4J+6)}\over \sin\beta)$, where $\sin\beta={1\over \sqrt{N}}$, $N$ the number of items in the database, and $J$ an integer equal to or greater than the integer part of $({\pi\over 2}-\beta)/(2\beta)$. Upon measurement at $(J+1)$-th iteration, the marked state is obtained with certainty.Comment: 5 pages. Accepted for publication in Physical Review

Efficient Simulation of Quantum Systems by Quantum Computers

We show that the time evolution of the wave function of a quantum mechanical many particle system can be implemented very efficiently on a quantum computer. The computational cost of such a simulation is comparable to the cost of a conventional simulation of the corresponding classical system. We then sketch how results of interest, like the energy spectrum of a system, can be obtained. We also indicate that ultimately the simulation of quantum field theory might be possible on large quantum computers. We want to demonstrate that in principle various interesting things can be done. Actual applications will have to be worked out in detail also depending on what kind of quantum computer may be available one day...Comment: 8 pages, latex, submitted to Phys. Rev. A, revised version has about double length of original and contains new ideas, e.g. how to obtain the spectrum of a quantum syste

Information and Accountants in the Role of Strategic Planning

This article on strategic planning practices is based upon a field study of five world-class companies. The strategic planning practices discussed in this article were extracted from the corporate environment. The information contained in this article, however, is of value alike to CPAs assisting with the enhancement of strategic planning practices in corporations and public accounting firms

Your EQ Skills: Got What it Takes?

Your EQ skills: got what it takes? So you thought the CPA exam was your last test? Read on. Question: Is success in life and career determined primarily by rational intelligence (the IQ or intelligence quotient) or emotional intelligence (the EQ or emotional quotient)? In other words, what\u27s more important: intelligence or intuition? Historically the professional accounting literature has placed little emphasis on behavioral issues such as EQ, although human behavior underlies most of what is written and taught about professional accounting. Now managers place increased value on behavioral skills that help people in the workplace. Look at this statistic: The productivity of one-third of American workers is measured by how they add value to information. Doesn\u27t that describe CPAs exactly? This article will examine the ways in which EQ is crucial to CPAs\u27 success and how they can cultivate EQ if they haven\u27t got a lot of it. The AICPA and the Institute of Management Accountants recognize that emotional intelligence skills are critical for the success of the accounting profession. In CPA Vision 2011 and Beyond: Focus on the Horizon (www.cpavision.org), the AICPA identifies emotional ..