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All Journal JFA (Jurnal Fisika dan Aplikasinya)
Agus Purwanto Agus Purwanto
Department of Physics, Institut Teknologi Sepuluh Nopember, Kampus ITS-Sukolilo Surabaya
Physics

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The Use of Dirac Oscillator as Medium Substrate for Quantum Heat Engine: Heru Sukamto, Bintoro Anang Subagyo, Agus Purwanto Heru Sukamto Heru Sukamto; Bintoro Anang Subagyo Bintoro Anang Subagyo; Agus Purwanto Agus Purwanto
Jurnal Fisika dan Aplikasinya Vol 18 No 3 (2022): October 2022 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v18i3.5282

Abstract

The research on Dirac oscillators has been increasing recently. In this paper, a quantum heat engine by means of a Dirac oscillator that interacts with the external magnetic field is proposed. Relativistic Landau energy levels are used to perform the iso-energetic cycle. The large magnetic field is set to obtain a perfect thermodynamic cycle. Some stable performances at a certain magnitude of magnetic field and expansion parameter range are obtained. When the value of efficiency is compared with the non-relativistic case, an opposite result occurs. Therefore, a quantum heat engine using a Dirac oscillator doesn’t govern like a classical oscillator.
Teleportasi Kuantum Terkontrol Keadaan Dua-Qubit Sembarang: Agus Purwanto, Lila Yuwana, I Nengah Artawan, Bayu Dwi Hatmoko, Rafika Rahmawati, Achmad Fatih Alqodri Agus Purwanto Agus Purwanto; Lila Yuwana Lila Yuwana; I Nengah Artawan I Nengah Artawan; Bayu Dwi Hatmoko Bayu Dwi Hatmoko; Rafika Rahmawati Rafika Rahmawati; Achmad Fatih Alqodri Achmad Fatih Alqodri
Jurnal Fisika dan Aplikasinya Vol 15 No 1 (2019): January 2019 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v15i1.4649

Abstract

We have shown in detail a scheme of controlled quantum teleportation of arbitrary two-qubit state via the five-qubit channel which is 30 of 32 measurements of Alice and Charlie give unitary transformations of Bob in positive and negative pairs, the two others are free and different.
Studi Awal Solar Water DistillerAir Laut Dengan Limbah Botol Plastik Untuk Penyediaan Air Bersih: Endarko, Suasmoro, Triwikantoro, Agus Purwanto, Zaenal Arifin, Mashuri, Yoyok Cahyono, Yanurita Dwi Hapsari, Heru Sukamto, Suminar Pratapa, Herliansyah, Fachrina Maryam, Mira Anjani, dan Niken Rancangkapti Endarko Endarko; Suasmoro Suasmoro; Triwikantoro Triwikantoro; Agus Purwanto Agus Purwanto; Zaenal Arifin Zaenal Arifin; Mashuri Mashuri; Yoyok Cahyono Yoyok Cahyono; Yanurita Dwihapsari Yanurita Dwihapsari; Heru Sukamto Heru Sukamto; Suminar Pratapa Suminar Pratapa; Herliansyah Herliansyah; Fachrina Maryam Fachrina Maryam; Mira Anjani Mira Anjani; Niken Rancangkapti Niken Rancangkapti
Jurnal Fisika dan Aplikasinya Vol 14 No 2 (2018): June 2018 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v14i2.3572

Abstract

It has been successfully investigated the utilization of waste plastic bottles as a solar water distiller for the provision of clean water. In this study 600 and 1500 mL plastic bottles used for solar water distiller with 9 variations. A 600 mL bottle with a variation of the addition of soda cans painted black or not (3 variations) as type A. Hereinafter, 600 mL plastic bottle connected with 1500 mL plastic bottle positioned above 600 mL bottle contained small plastic bottle placed in bottle 1500 mL with variations of either painted black or not (3 variations) is called type B. Moreover, the next three variations are 1500 mL bottles cut in half to resemble open containers with smaller plastic bottles placed inside whether painted black or not (Type C). Furthermore, as a comparison of plastic containers (basin) with a diameter of 25 cm used for the solar distiller. The study was conducted with 30 mL of seawater as the initial data, after 8 hours exposed to the sunlight. The results showed that plastic containers had better efficiency compared to all types of the plastic bottle as solar distiller with the value up to (55.7 ± 3.1)%, while for the distillation system with plastic bottles, the highest efficiency was obtained type distillation system A with a range of 11-13%. While for type B and C respectively equal to 1-4%.
Co-Authors Achmad Fatih Alqodri Achmad Fatih Alqodri Bayu Dwi Hatmoko Bayu Dwi Hatmoko Bintoro Anang Subagyo Bintoro Anang Subagyo Endarko Endarko Fachrina Maryam Fachrina Maryam Herliansyah Herliansyah Heru Sukamto Heru Sukamto I Nengah Artawan I Nengah Artawan Lila Yuwana Lila Yuwana Mashuri Mashuri Mira Anjani Mira Anjani Niken Rancangkapti Niken Rancangkapti Rafika Rahmawati Rafika Rahmawati Suasmoro Suasmoro Suminar Pratapa Suminar Pratapa Triwikantoro Triwikantoro Yanurita Dwihapsari Yanurita Dwihapsari Yoyok Cahyono Yoyok Cahyono Zaenal Arifin Zaenal Arifin