Quantum physics and the universe

Jatindranath Gain

The majority of quantum mechanics' founding fathers were sensitive to the philosophical implications of quantum mechanics. The theories of relativity developed by Einstein also turned out to have philosophical implications. Although quantum physics could seem enigmatic, it explains everything in our environment, whether we are aware of it or not. Using the abilities of quantum physics results in the expansion of innovative technologies, both for use now and maybe in the future. Everything is explained by quantum physics, which provides the greatest description we currently have of the nature of the particles in the cosmos. The efforts to explain the universe in terms of quantum physics, which regulates the behaviour of the subatomic, microscopic world, are presented in Quantum Universe. It shows a revolution in quantum physics as well as a quantum leap in our understanding of the universe's mystery and beauty. Quantum physics is trying to find a common singularity for all objects. They are trying to discover the 'Theory of Everything, that will explain everything in this universe. Vedanta and Quantum Physics both are looking for the same underlying reality and searching for the absolute truth in the universe, though their approach to searching is different. This paper will attempt to concentrate on the perspectives of Quantum Physics & Advaita Vedanta about the ultimate reality in the universe, the nature of consciousness.

Peter S. Buffa, Sally V. Beaty, Annenberg +1 more

Dave Bacon, Julia Kempe, David Peter Divincenzo +2 more

We revisit the question of universality in quantum computing and propose a new paradigm. Instead of forcing a physical system to enact a predetermined set of universal gates (e.g., single-qubit operations and CNOT), we focus on the intrinsic ability of a system to act as a universal quantum computer using only its naturally available interactions. A key element of this approach is the realization that the fungible nature of quantum information allows for universal manipulations using quantum information encoded in a subspace of the full system Hilbert space, as an alternative to using physical qubits directly. Starting with the interactions intrinsic to the physical system, we show how to determine the possible universality resulting from these interactions over an encoded subspace. We outline a general Lie-algebraic framework which can be used to find the encoding for universality and give several examples relevant to solid-state quantum computing.

Chen‐Bin Huang, Yong-Chang Huang

This paper deduces universal uncertainty principle in different quantum theories after about one century of proposing uncertainty principle by Heisenberg, i.e., new universal uncertainty principle of any orders of physical quantities in quantum physics, overcomes the difficulty that current quantum computer, quantum communication, quantum control, quantum mechanics and so on theories cannot give exact values of general uncertainty of any orders of physical quantities, further gives all relevant different expressions of the universal uncertainty principle and their applications. In fact, our studies are consistent with current theories and physical factual experiments, e.g., relevant to hydrogen atom physics experiments. Using the new universal uncertainty principle, people can give all applications to atomic physics, quantum mechanics, quantum communication, quantum calculations, quantum computer and so on.