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On the Role of Inconsistency in Quantum Foundational Debate and Hilbert Space Formulation 论不一致性在量子基础辩论和希尔伯特空间公式中的作用
Quanta Pub Date : 2022-10-05 DOI: 10.12743/quanta.v11i1.195
Debajyoti Gangopadhyay
{"title":"On the Role of Inconsistency in Quantum Foundational Debate and Hilbert Space Formulation","authors":"Debajyoti Gangopadhyay","doi":"10.12743/quanta.v11i1.195","DOIUrl":"https://doi.org/10.12743/quanta.v11i1.195","url":null,"abstract":"This article is intended mainly to develop an expository outline of an inherently inconsistent reasoning in the development of quantum mechanics during 1920s, which set up the background of proposing different variants of quantum logic a bit later. We will discuss here two of the quantum logical variants with reference to Hilbert space formulation, based on the proposals of Bohr and Schrödinger as a result of addressing the same kernel of difficulties and will give a relative comparison. Our presentation is fairly informal, as our goal here is to simply sketch the central ideas leaving further details for other occasions.Quanta 2022; 11: 28–41.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45549424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual Instruments and Sequential Products of Observables 对偶仪器与观察器的序积
Quanta Pub Date : 2022-08-16 DOI: 10.12743/quanta.v11i1.197
S. Gudder
{"title":"Dual Instruments and Sequential Products of Observables","authors":"S. Gudder","doi":"10.12743/quanta.v11i1.197","DOIUrl":"https://doi.org/10.12743/quanta.v11i1.197","url":null,"abstract":"We first show that every operation possesses an unique dual operation and measures an unique effect. If a and b are effects and J is an operation that measures a, we define the sequential product of a then b relative to J. Properties of the sequential product are derived and are illustrated in terms of Lüders and Holevo operations. We next extend this work to the theory of instruments and observables. We also define the concept of an instrument (observable) conditioned by another instrument (observable). Identity, state-constant and repeatable instruments are considered. Sequential products of finite observables relative to Lüders and Holevo instruments are studied.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42211893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The Quantum Hamilton–Jacobi Equation and the Link Between Classical and Quantum Mechanics 量子哈密顿-雅可比方程和经典力学与量子力学之间的联系
Quanta Pub Date : 2022-03-14 DOI: 10.12743/quanta.v11i1.202
M. Fusco Girard
{"title":"The Quantum Hamilton–Jacobi Equation and the Link Between Classical and Quantum Mechanics","authors":"M. Fusco Girard","doi":"10.12743/quanta.v11i1.202","DOIUrl":"https://doi.org/10.12743/quanta.v11i1.202","url":null,"abstract":"We study how the classical Hamilton's principal and characteristic functions are generated from the solutions of the quantum Hamilton–Jacobi equation. While in the classically forbidden regions these quantum quantities directly tend to the classical ones, this is not the case in the allowed regions. There, the limit is reached only if the quantum fluctuations are eliminated by means of coarse-graining averages. Analogously, the classical Hamilton–Jacobi scheme bringing to the motion's equations arises from a similar formal quantum procedure.Quanta 2022; 11: 42–52.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42610350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
George Sudarshan: Perspectives and Legacy George Sudarshan:观点和遗产
Quanta Pub Date : 2021-12-24 DOI: 10.12743/quanta.v10i1.174
G. Bhamathi
{"title":"George Sudarshan: Perspectives and Legacy","authors":"G. Bhamathi","doi":"10.12743/quanta.v10i1.174","DOIUrl":"https://doi.org/10.12743/quanta.v10i1.174","url":null,"abstract":"George Sudarshan has been hailed as a titan in physics and as one who has made some of the most significant contributions in several areas of physics. This article is an attempt to highlight the seminal contributions he has made in physics and the significant developments that arose from his work.Quanta 2021; 10: 75–104.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45564444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
How Do the Probabilities Arise in Quantum Measurement? 量子测量中的概率是如何产生的?
Quanta Pub Date : 2021-12-17 DOI: 10.12743/quanta.v10i1.173
M. Bhaumik
{"title":"How Do the Probabilities Arise in Quantum Measurement?","authors":"M. Bhaumik","doi":"10.12743/quanta.v10i1.173","DOIUrl":"https://doi.org/10.12743/quanta.v10i1.173","url":null,"abstract":"A satisfactory resolution of the persistent quantum measurement problem remains stubbornly unresolved in spite of an overabundance of efforts of many prominent scientists over the decades. Among others, one key element is considered yet to be resolved. It comprises of where the probabilities of the measurement outcome stem from. This article attempts to provide a plausible answer to this enigma, thus eventually making progress toward a cogent solution of the longstanding measurement problem.Quanta 2021; 10: 65–74.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43848846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Class of Stochastic and Distributions-Free Quantum Mechanical Evolution Equations 一类随机无分布的量子力学演化方程
Quanta Pub Date : 2021-10-23 DOI: 10.12743/quanta.v10i1.159
Gregorio Jose Costanza
{"title":"A Class of Stochastic and Distributions-Free Quantum Mechanical Evolution Equations","authors":"Gregorio Jose Costanza","doi":"10.12743/quanta.v10i1.159","DOIUrl":"https://doi.org/10.12743/quanta.v10i1.159","url":null,"abstract":"A procedure allowing to construct rigorously discrete as well as continuum deterministic evolution equations from stochastic evolution equations is developed using Dirac's bra–ket notation. This procedure is an extension of an approach previously used by the author coined Discrete Stochastic Evolution Equations. Definitions and examples of discrete as well as continuum one-dimensional lattices are developed in detail in order to show the basic tools that allow to construct Schrödinger-like equations. Extension to multi-dimensional lattices are studied in order to provide a wider exposition and the one-dimensional cases are derived as special cases, as expected. Some variants of the procedure allow the construction of other evolution equations. Also, using a limiting procedure, it is possible to derive the Schrödinger equation from the Schrödinger-like equations. Another possible approach is given in the appendix.Quanta 2021; 10: 22–33.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45727010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Konseling Kognitif-Behavioral : Suatu Pendekatan Berbantuan E-Counseling IKIP Siliwangi Untuk Meningkatkan Efikasi Diri Performa Akademik 认知行为咨询：一种由E-Cunsling IKIP Intelligent协助提高学业成绩有效性的方法·全球之声
Quanta Pub Date : 2021-10-13 DOI: 10.22460/Q.V5I3P87-94.2814
S. Fatimah, A. Manuardi, R. Meilani
{"title":"Konseling Kognitif-Behavioral : Suatu Pendekatan Berbantuan E-Counseling IKIP Siliwangi Untuk Meningkatkan Efikasi Diri Performa Akademik","authors":"S. Fatimah, A. Manuardi, R. Meilani","doi":"10.22460/Q.V5I3P87-94.2814","DOIUrl":"https://doi.org/10.22460/Q.V5I3P87-94.2814","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui tingkat keberhasilan konseling kognitif-behavioral berbantuan e-counseling dalam meningkatkan efikasi diri performa akademik yang merujuk pada fenomena mahasiswa yang memiliki kemampuan akademik baik namun cenderung memiliki konsep berfikir negatif yang dapat menurunkan efikasi diri dalam proses akademiknya di Perguruan Tinggi. Konseling kognitif-behavioral diharapkan dapat membantu mengoreksi self-beliefs yang salah atau menyimpang sehingga mengakibatkan cara berpikir tidak rasional dan juga membantu individu mengatasi masalah psikologis yang mengganggu keberfungsiannya secara sosial dan individual. Penelitian ini menggunakan pendekatan kuantitatif yaitu desain pra eksperimen dengan One Group Pretest-Posttest Design. Subjek dalam penelitian ini adalah mahasiswa Bimbingan dan Konseling IKIP Siliwangi yang terdiri dari 13 mahasiswa. Alat ukur pada penelitian ini menggunakan skala efikasi diri performa akademik yang diturunkan dari tiga dimensi menurut Bandura dengan kategori reliabilitas Guilford sedang yaitu 0,554. Berdasarkan hasil uji Wilcoxon dengan nilai Asyimp.Sig. (2-Tailed) bernilai 0,001 < 0,05, menunjukkan bahwa hipotesis penelitian diterima yaitu ada perbedaan tingkat efikasi diri performa akademik antara sebelum dan sesudah perlakuan dengan konseling kognitif-behavioral sehingga dapat disimpulkan bahwa konseling kognitif-behavioral berhasil dalam meningkatkan efikasi diri performa akademik mahasiswa Bimbingan dan Konseling IKIP Siliwangi.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48928883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PENINGKATAN KOMPETENSI GURU BIMBINGAN DAN KONSELING DALAM PENDAMPINGAN SISWA BERKEBUTUHAN KHUSUS 在特殊需要的学生辅导和咨询方面，教师能力的提高
Quanta Pub Date : 2021-10-13 DOI: 10.22460/Q.V5I3P79-86.2813
S. Aminah, Fathur Rahman, Yuli Nurmalasari
{"title":"PENINGKATAN KOMPETENSI GURU BIMBINGAN DAN KONSELING DALAM PENDAMPINGAN SISWA BERKEBUTUHAN KHUSUS","authors":"S. Aminah, Fathur Rahman, Yuli Nurmalasari","doi":"10.22460/Q.V5I3P79-86.2813","DOIUrl":"https://doi.org/10.22460/Q.V5I3P79-86.2813","url":null,"abstract":"Guru bimbingan dan konseling memiliki peran penting dalam upaya mensukseskan penyelenggaraan pendidikan inklusi. Kegiatan  bertujuan untuk meningkatkan kesadaran, pengetahuan, dan keterampilan mengenai kerangka layanan bimbingan dan konseling bagi peserta didik dengan berkebutuhan khusus. Metode yang digunakan berupa ceramah, diskusi dan praktek penyusunan kerangka layanan bimbingan dan konseling dalam konteks kebutuhan khusus. Sasaran pelatihan adalah guru bimbingan dan konseling. Langkah-langkah kegiatan pelatihan antara lain; pre test, penyampaian materi, diskusi, penugasan penyusunan kerangka layanan bimbingan dan konseling berkebutuhan khusus, post test dan evaluasi. Hasil pre test dan post test menunjukkan terdapat peningkatan pada aspek kesadaran, pengetahuan, dan keterampilan yang signifikan yaitu skor rata-rata pre test sebesar 56,76 % dan skor rata-rata post test sebesar 81,49 %. Hasil menunjukkan bahwa terdapat peningkatan pemahaman mengenai kerangka layanan siswa berkebutuhan khusus yang terdiri dari deteksi dini, konsultasi, kolaborasi dan konseling. Peserta memberikan umpan balik positif terhadap kegiatan dan mengharapkan kegiatan lanjutan berkaitan dengan aplikasi layanan bimbingan dan konseling berkebutuhan khusus.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42499503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
"Mysteries" of Modern Physics and the Fundamental Constants c, h, and G 现代物理学的“奥秘”和基本常数c、h和G
Quanta Pub Date : 2021-10-13 DOI: 10.12743/quanta.v11i1.189
W. Stuckey, T. McDevitt, M. Silberstein
{"title":"\"Mysteries\" of Modern Physics and the Fundamental Constants c, h, and G","authors":"W. Stuckey, T. McDevitt, M. Silberstein","doi":"10.12743/quanta.v11i1.189","DOIUrl":"https://doi.org/10.12743/quanta.v11i1.189","url":null,"abstract":"We review how the kinematic structures of special relativity and quantum mechanics both stem from the relativity principle, i.e., \"no preferred reference frame\" (NPRF). Essentially, NPRF applied to the measurement of the speed of light c gives the light postulate and leads to the geometry of Minkowski space, while NPRF applied to the measurement of Planck's constant h gives \"average-only\" projection and leads to the denumerable-dimensional Hilbert space of quantum mechanics. These kinematic structures contain the counterintuitive aspects (\"mysteries\") of time dilation, length contraction, and quantum entanglement. In this essay, we extend the application of NPRF to the gravitational constant G and show that it leads to the \"mystery\" of the contextuality of mass in general relativity. Thus, we see an underlying coherence and integrity in modern physics via its \"mysteries\" and the fundamental constants c, h, and G. It is well known that Minkowski and Einstein were greatly influenced by David Hilbert in their development of special relativity and general relativity, respectively, but relating those theories to quantum mechanics via its non-Boolean Hilbert space kinematics is perhaps surprising.Quanta 2022; 11: 5–14.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45155072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
GAMBARAN EMPLOYABILITY PADA MAHASISWA TINGKAT AKHIR UNIVERSITAS JENDERAL ACHMAD YANI (UNJANI) 亚希玛亚尼大学中学生的就业状况(un亲爱的)
Quanta Pub Date : 2021-10-13 DOI: 10.22460/Q.V5I3P106-110.2816
Endah Andriani Pratiwi, Devy Sekar ayu Ningrum
{"title":"GAMBARAN EMPLOYABILITY PADA MAHASISWA TINGKAT AKHIR UNIVERSITAS JENDERAL ACHMAD YANI (UNJANI)","authors":"Endah Andriani Pratiwi, Devy Sekar ayu Ningrum","doi":"10.22460/Q.V5I3P106-110.2816","DOIUrl":"https://doi.org/10.22460/Q.V5I3P106-110.2816","url":null,"abstract":"Penelitian ini bertujuan untuk mengetahui gambaran employability pada mahasiswa Tingkat Akhir Universitas Jenderal Achmad Yani (UNJANI). Metode yang digunakan dalam penelitian ini adalah Metode deskriptif dengan pendekatan kuantitatif. Penelitian ini menggunakan teori employability yang dikemukakan oleh tokoh Pool & Sewell (2007). Sampel dalam penelitian ini adalah 280 orang mahasiswa tingkat akhir di UNJANI, dengan teknik pengambilan sampel Snowball sampling . Alat ukur yang digunakan dalam penelitian ini adalah adaptasi dari alat ukur yang telah dibuat oleh Pool & Sewell (2007) mengenai employability . Hasil penelitian menunjukkan bahwa employability dengan kategori sedang.","PeriodicalId":37613,"journal":{"name":"Quanta","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44138414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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