We report on the simultaneous determination of complementary wave and particle aspects of light in a double-slit type “welcher-weg” experiment beyond the limitations set by Bohr’s Principle of Complementarity. Applying classical logic, we verify the presence of sharp interference in the single photon regime, while reliably maintaining the information about the particular pinhole through which each individual photon had passed. This experiment poses interesting questions on the validity of Complementarity in cases where measurements techniques that avoid Heisenberg’s uncertainty principle and (...) quantum entanglement are employed. We further argue that the application of classical concepts of waves and particles as embodied in Complementarity leads to a logical inconsistency in the interpretation of this experiment. (shrink)

We conducted a systematic literature review on the ethical considerations of the use of contact tracing app technology, which was extensively implemented during the COVID-19 pandemic. The rapid and extensive use of this technology during the COVID-19 pandemic, while benefiting the public well-being by providing information about people’s mobility and movements to control the spread of the virus, raised several ethical concerns for the post-COVID-19 era. To investigate these concerns for the post-pandemic situation and provide direction for future events, we (...) analyzed the current ethical frameworks, research, and case studies about the ethical usage of tracing app technology. The results suggest there are seven essential ethical considerations—privacy, security, acceptability, government surveillance, transparency, justice, and voluntariness—in the ethical use of contact tracing technology. In this paper, we explain and discuss these considerations and how they are needed for the ethical usage of this technology. The findings also highlight the importance of developing integrated guidelines and frameworks for implementation of such technology in the post- COVID-19 world. (shrink)

The objective of this study is to review the performance of business students in ethics assessments and suggest enhancements to the ethics curriculum. Data triangulation method was used to gather the data. First, data was gathered from ethics assessments that tested the performance of students. Then a faculty focus group discussion was held to gather their thoughts on the future of the ethics education. Incorporating these thoughts, 389 students were surveyed to understand their perspectives on the future of ethics education. (...) The results show that the faculty members believe the student performance needs improvement. In addition, the faculty and the students make detailed recommendations to enhance the ethics curriculum at the introductory and advanced levels. Their recommendations include that code of conduct should be a part of ethics education, and faculty members with work experience related to ethical dilemmas should deliver the ethics education. Both groups opined on the possibility of teaching ethics in a stand-alone course versus imbedding it in select courses. The details of the findings and implications are discussed. (shrink)

Shahriar S. Afshar claimed that his 2007 modified version of the double-slit experiment violates complementarity. He makes two modifications to the standard double-slit experiment. First, he adds a wire grid that is placed in between the slits and the screen at locations of interference minima. The second modification is to place a converging lens just after the wire grid. The idea is that the wire grid implies the existence of interference minima, while the lens can simultaneously obtain which-way information. (...) More recently, Cramer argued that the experiment bolstered the Transactional Interpretation of Quantum mechanics. His argument scrutinizes Bohr’s complementarity in favor of TIQM. We analyze this experiment by simulation using the path integral formulation of quantum mechanics and find that it agrees with the wave-particle duality relation given by Englert, Greenberg and Yasin. We conclude that the use of Afshar’s experiment to provide a testbed for quantum mechanical interpretations is limited. (shrink)

A modified version of Young's experiment by Shahriar Afshar demonstrates that, prior to what appears to be a ``which-way'' measurement, an interference pattern exists. Afshar has claimed that this result constitutes a violation of the Principle of Complementarity. This paper discusses the implications of this experiment and considers how Cramer's Transactional Interpretation easily accomodates the result. It is also shown that the Afshar experiment is isomorphic in key respects to a spin one-half particle prepared as ``spin up along x'' (...) and post-selected in a specific state of spin along z. The terminology ``which way'' or ``which-slit'' is critiqued; it is argued that this usage by both Afshar and his critics is misleading and has contributed to confusion surrounding the interpretation of the experiment. Nevertheless, it is concluded that Bohr would have had no more problem accounting for the Afshar result than he would in accounting for the aforementioned pre- and post-selection spin experiment, in which the particle's preparation state is confirmed by a nondestructive measurement prior to post-selection. In addition, some new inferences about the interpretation of delayed choice experiments are drawn from the analysis. (shrink)

A modified version of Young's experiment by Shahriar Afshar demonstrates that, prior to what appears to be a ``which-way'' measurement, an interference pattern exists. Afshar has claimed that this result constitutes a violation of the Principle of Complementarity. This paper discusses the implications of this experiment and considers how Cramer's Transactional Interpretation easily accomodates the result. It is also shown that the Afshar experiment is isomorphic in key respects to a spin one-half particle prepared as ``spin up along x'' (...) and post-selected in a specific state of spin along z. The terminology ``which way'' or ``which-slit'' is critiqued; it is argued that this usage by both Afshar and his critics is misleading and has contributed to confusion surrounding the interpretation of the experiment. Nevertheless, it is concluded that Bohr would have had no more problem accounting for the Afshar result than he would in accounting for the aforementioned pre- and post-selection spin experiment, in which the particle's preparation state is confirmed by a nondestructive measurement prior to post-selection. In addition, some new inferences about the interpretation of delayed choice experiments are drawn from the analysis. (shrink)

"He is not a prophet, but he has a holy book" is a famous couplet among Mawlana Jalal-ad Din Rumi (d. 1273) followers. This couplet is attributed to Abdurrahman Jami (d. 1492). The three couplet that have similar connotations to Jami’s couplet, more common in Iran, speculated to be written by Baha-ad Din Amili (d. 1622). In these couplets, the phrase “The Persian Qur'an" is interchangeably used to refer to Mathnawi and draws attention to another phrase "guidance some and misguidance (...) others". Repeatedly these couplets phrase is also used by well known contemporary poets such as Muhammad Iqbal (d. 1938) and Mohammad Hossein Shahriar (d. 1988) and some orientalist writers such as Reynold Nicholson (d. 1945) and Annemarie Schimmel (d. 2003). Rumi never claimed to be a prophet and introduced himself as the servant of the Qur'an and dust of the road of the prophet Muhammad. The poet has emphasized the qualities of the Qur'an, its commands and prohibitions, its universal messages and the importance of contemplating on the verses in various parts of Mathnawi. In order to understand the Qur'an better and correctly, he explained what should be done and presented methods. He re-told and elaborated some of the stories in the Qur'an, praised the lofty rank of the Holy Prophet Muhammad and narrated the stories of other prophets with the respect he showed them. The definitions in the poems sung as the praise of Rumi and the Mathnawi on the one hand, based on Rumi’s mentions in Mathnawi's preface: "This is the Mathnawi book and it is the principles of the principles of the principles of the religion". Here, Rumi has described his work with the attributes of the Qur'an and said that it is protected by Allah. Ismail Ankaravı, who is the commentator of the Mathnawi, said: "The Mathnawi is where two seas meet, composed of interpretations of the Qur'an and Hadith". The statement also explains this issue. The commentary of the verses or the references to the verses are clearly mentioned in the Mathnawi. There are references to more than two thousand and two hundred verses in total. This indicates that Mathnawi can be the interpretation of the Qur'an. From another point of view, various writing style and morphological similarities can be established between the Mathnawi and the Qur'an. Like the Qur'an, Mathnawi also starts with an order, is a product of inspiration (revelation), contains a summary of the entire book at the beginning, the mode of expression is generally stories and representations, and there is a need for commentary in order to be understood by passing from form to meaning etc. they have many similarities. In these respects, Mathnawi has been likened to the Qur'an written in Persian by a non-prophet one. In this study, first the process of the emergence and use of this expression will be followed, then Rumi's views on the Qur'an, the place of the Qur'an in Mathnawi, the common aspects of the Qur'an and Mathnawi will be discussed and it will be tried to explain why these great poets and writers called Mathnawi the Persian Qur'an. (shrink)

A modified version of Young’s experiment by Shahriar Afshar indirectly reveals the presence of a fully articulated interference pattern prior to the post-selection of a particle in a “which-slit” basis. While this experiment does not constitute a violation of Bohr’s Complementarity Principle as claimed by Afshar, both he and many of his critics incorrectly assume that a commonly used relationship between visibility parameter V and “which-way” parameter K has crucial relevance to his experiment. It is argued here that this (...) relationship does not apply to this experimental situation and that it is wrong to make any use of it in support of claims for or against the bearing of this experiment on Complementarity. (shrink)

A modified version of Young's experiment by Shahriar Afshar demonstrates that, prior to a ``which-way'' measurement indicating which slit a particle goes through, an interference pattern exists. It has been claimed that this result constitutes a violation of the Principle of Complementarity. This paper discusses the implications of this experiment and considers how Cramer's Transactional Interpretation accomodates the result. It is shown that the Afshar experiment is isomorphic in key respects to a a spin one-half particle prepared as ``spin (...) up along x'' and post-selected in a specific state of spin along z. It is concluded that Bohr would have had no more problem accounting for the Afshar result than he would in accounting for the aforementioned pre- and post-selection spin experiment, in which the particle's preparation state is confirmed by a nondestructive measurement prior to post-selection. (shrink)