"Published on behalf of Journal of the Physical Society of Japan"--Home page. Title change: Progress of Theoretical and Experimental Physics (PTEP) is the successor to Progress of Theoretical Physics (PTP). PTP terminated in December 2012 and merged into PTEP in January 2013.
Progress of Theoretical and Experimental Physics (PTEP) is the successor to Progress of Theoretical Physics (PTP). PTP terminated in December 2012 and merged into PTEP in January 2013. Archives for Progress of Theoretical Physics Supplements are also available.