We present an analysis of Wiesner’s quantum money scheme, as well as some natural generalizations of it, based on semidefinite programming. For Wiesner’s original scheme, it is determined that the optimal probability for a counterfeiter to create two copies of a bank note from one, where both copies pass the bank’s test for validity, is (3/4)n for n being the number of qubits used for each note...

We propose a quantum-like description of markets and economics. The approach has roots in the recently developed quantum game theory. PACS numbers: 02.50.Le, 03.67.-a, 03.65.Bz Introduction One of the biggest scientific revolutions was caused by the emergence of quantum physics and the consequent falsification of the idea of the possibility of distinction between observer and observed phenomeno...

money and the way people spend it may cause lots of tension among family members; therefore, it is important to concentrate on money and the way it is spent. this article aims to address how women and men treat money as well as their differences and similarities. a mixed method (field research and survey) was designed to answer this question. qualitative data was gathered by using semi structur...

there are various ways for estimating velocity of money in economic literature and each has its own specific weaknesses and strengths. particularly, since a great deal of financial innovations and changes have recently taken place affecting the velocity of money, many traditional methods can no langer calculate the equilibrium velocity of money, and they are no longer dependable from the econom...

the rank-k numerical range has a close connection to the construction of quantum error correction code for a noisy quantum channel. for noisy quantum channel, a quantum error correcting code of dimension k exists if and only if the associated joint rank-k numerical range is non-empty. in this paper the notion of joint rank-k numerical range is generalized and some statements of [2011, generaliz...

The properties of money commonly referenced in the economics literature were originally identified by Jevons (1876) and Menger (1892) late 1800s intended to describe physical currencies, such as commodity money, metallic coins, paper bills. In digital era, many non-physical currencies have either entered circulation or are under development, including demand deposits, cryptocurrencies, stableco...

quantum organizations are referred where stakeholders know how to access the infinite potential of the quantum field. viewing healthcare organizations from perspective of quantum theory suggest new approaches into management techniques for effective and efficient delivery of healthcare services. this research is aimed to determine the quantum skills, quantum leadership characteristics and funct...

This paper investigates the implications of normaland extensive-form quantal response equilibrium (QRE) models (McKelvey and Palfrey, 1995, Games and Economic Behavior; 1998, Experimental Economics) in the ultimatum bargaining game, assuming that players maximize expected monetary payo ̄ s. It is shown that normal-form QRE can select a non-sequential equilibrium, and that the selection depends c...

We test the quantity theory of money (QTM) using a novel approach and a large new sample. We do not follow the usual approach of first differentiating the logarithm of the Cambridge equation to obtain an equation relating the growth rate of real GDP, the growth rate of money and inflation. These variables must then again be 'integrated' by averaging in order to obtain stable relationships. Inst...