AAPPS bulletin

June 2022Vol 32

Research and Review
  • A geometrical framework for quantum incompatibility resources

    Xiaolin Zhang, Rui Qu, Zehong Chang, Quan Quan, Hong Gao, Fuli Li & Pei Zhang

    Abstract Quantum incompatibility is a fundamental property in quantum physics and is considered as a resource in quantum information processing tasks. Here, we construct a framework based on the incompatibility witness originated from quantum state discrimination. In this framework, we discuss the geometrical properties of the witnesses with noisy mutually unbiased bases and construct a quantifier of quantum incompatibility associated with geometrical information. Furthermore, we explore the in

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  • Review of technical achievements in PAL-XFEL

    Changbum Kim, Sung-Ju Park, Chang-Ki Min, Jinyul Hu, Sang-Hee Kim, Youngdo Joo, Hoon Heo, Dong-Eon Kim, Sojeong Lee, Heung-Sik Kang, In Soo Ko, Moonsik Chae & Jaehyun Lee

    Abstract The X-ray Free Electron Laser of Pohang Accelerator Laboratory (PAL-XFEL) was opened for the user in 2017. PAL-XFEL was the third XFEL facility in the world and well known for the small timing jitter of FEL radiation. This success was possible because of the significant achievements in the accelerator technology in PAL-XFEL. They are not limited to a small part of the accelerator but cover from the injector for the electron beam generation to the undulator line for FEL radiation. In th

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  • Microscopic theory for nuclear fission dynamics

    Jhilam Sadhukhan

    Abstract Nuclear theory research is undergoing a renaissance owing to the recent advancements in the high-performance computing. As nucleus is a quantum many-body system with complicated interparticle interactions, initial theoretical developments were predominantly based on different phenomenological models derived with the help of numerous simplifying assumptions. Although appropriate nuclear many-body theories were formulated, these were hardly adopted in practical applications because of co

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  • Realizing multi-ubit controlled nonadiabatic holonomic gates with connecting systems

    G. F. Xu & D. M. Tong

    Abstract Multi-qubit controlled gates are frequently used in quantum information processing. Although they can be built with gates from the universal set of one- and two-qubit gates, this procedure typically becomes very demanding as the number of such gates rapidly grows with the size of the computational problem. Thus, finding a way to realize them with fewer steps and therefore with reduced decoherence errors is important. Particularly, quantum information is entering noisy intermediate-scal

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  • Condensed matter physics in big discrete time crystals

    Peter Hannaford & Krzysztof Sacha

    Abstract We review the application of discrete time crystals created in a Bose-Einstein condensate (BEC) of ultracold atoms bouncing resonantly on an oscillating atom mirror to the investigation of condensed matter phenomena in the time dimension. Such a bouncing BEC system can exhibit dramatic breaking of time-translation symmetry, allowing the creation of discrete time crystals having up to about 100 temporal lattice sites and suitable for hosting a broad range of temporal condensed matter ph

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Research Highlights
  • A Revolution in the Standard Model of Particle Physics? The "Overweight" W Gauge Boson from CDF II

    Lei Wu

    A Revolution in the Standard Model of Particle Physics? The "Overweight" W Gauge Boson from CDF II Lei Wu The Standard Model (SM) of particle physics is one of the most fundamental theories of physics. It describes the fundamental particles that make up our world and the three fundamental interactions between them: the electromagnetic force, the weak force, and the strong force. In the Standard Model, all interactions are mediated by exchanging gauge bosons. Discovered in 1983, the W boson is a

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News and Views
  • Formation of the Arab Physical Society

    Sameen Ahmed Khan

    Formation of the Arab Physical Society Sameen Ahmed Khan The Arab Physical Society was formally launched with a day-long online event on April 7, 2022. The event was headlined with presentations by eminent physicists including Nobel laureates (Gerard 't Hooft, 1999, Takaaki Kajita, 2015 and Roger Penrose, 2020), Dirac medallists (Edward Witten, 1985, John Ellis, 2005 and Charles Kane, 2012) and a Fields medallist (Edward Witten, 1990). The presentations covered important physics research topics

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  • The Physical Society of Japan: 3rd (2022) Fumiko Yonezawa Memorial Prize

    JPS

    The Physical Society of Japan: 3rd (2022) Fumiko Yonezawa Memorial Prize JPS The late Fumiko Yonezawa, emeritus professor of Keio University, made major contributions to physics, such as the development of the coherent potential approximation, and the theory of the metal-insulator transition in liquid selenium. Prof. Yonezawa served as the first female president of the Physical Society of Japan (JPS) and as the president of the Society for Women Scientists for a Bright Future, she also promoted

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  • The Physical Society of Japan Announces the Recipients of the 27th Outstanding Paper Award

    JPS

    The Physical Society of Japan Announces the Recipients of the 27th Outstanding Paper Award JPS In recognition of important achievements toward progress in physics, the Physical Society of Japan (JPS) annually selects outstanding papers from among original research articles published in the Journal of the Physical Society of Japan, Progress of Theoretical Physics, Progress of Theoretical and Experimental Physics, and JPS Conference Proceedings. The selection committee has chosen four papers for

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