Quantum simulators are controllable quantum systems that can be used to simulate other quantum systems. Being able to tackle problems that are intractable on classical computers, quantum simulators would provide a means of exploring new physical phenomena. We present an overview of how quantum simulators may become a reality in the near future as the required technologies are now within reach. ...

Niels Bohr wrote: " There is no quantum world. There is only an abstract quantum physical description. It is wrong to think that the task of physics is to find out how Nature is. Physics concerns what we can say about Nature. " In an analogous way, von Weizsäcker suggested that the notion of the elementary alternative, the " Ur " , should play a pivotal role when constructing physics. Both appr...

The Quantum Physics Division is the NIST part of JILA*, a joint research, training, and technology innovation institute between NIST and the University of Colorado, Boulder (CU). Founded in 1962, JILA is the nation’s first full university-government partnership, where Federal employee scientists and university scientists are physically co-located and work continuously and collaboratively on res...

Quantum physics and biology have long been regarded as unrelated disciplines, describing nature at the inanimate microlevel on the one hand and living species on the other hand. Over the past decades the life sciences have succeeded in providing ever more and refined explanations of macroscopic phenomena that were based on an improved understanding of molecular structures and mechanisms. Simult...

Mathematical and phenomenological arguments in favor of asymmetric time evolution of micro-physical states are presented.

Motivated by Feynman’s 1983 paper on the simulation of physics by computers, we present a general approach to the description of quantum experiments which uses quantum bit registers to represent the spatio-temporal changes occurring in apparatus-systems during the course of such experiments. To illustrate our ideas, we discuss the Stern-Gerlach experiment, Wollaston prisms, beam splitters, Mach...

Nuclear physics is the field of physics that studies the constituents and interactions of atomic nuclei. The most commonly known applications of nuclear physics are nuclear power generation andnuclear weapons technology, but the research has provided application in many fields, including those in nuclear medicine and magnetic resonance imaging, ion implantation in materials engineering, and rad...