Sajeed, ShihanHaider, A F M Yusuf2017-04-122017-04-122010Sajeed, S., & Haider, A. F. M. Y. (2010). An experimental demonstration of quantum NOT gate: Transition from classical to quantum regime. Paper presented at the 2010 IEEE International Conference on Electro/Information Technology, EIT2010, doi:10.1109/EIT.2010.5612122978-142446875-1http://hdl.handle.net/10361/8032This conference paper was presented in the 2010 IEEE International Conference on Electro/Information Technology, EIT2010; Normal, IL; United States; 20 May 2010 through 22 May 2010; Category numberCFP10EIT-ART; Code 82572 [© 2010 IEEE] The conference paper's definite version is available at: 10.1109/EIT.2010.5612122Path of a photon was considered to be used as qubit for implementing quantum NOT gate. An experimental setup was designed using a Mach-Zehnder interferometer constructed from simple optical devices such as He-Ne lasers, beam splitters, mirrors, attenuators etc. and quantum interference was utilized for multi photon case. A number of experiments were performed and the outcome of the experiment was observed by taking a number of photographs of the output beam for a number of input intensities. The observations proved that the setup indeed performed the required NOT transformation with good reliability at multi photon case and thus can be usefully used as a quantum not gate.enBeam splitterMach-Zehnder interferometerQuantum interferenceQubitsQuntum NOT gateConference Paper