Dec 13, 2015 · The radius of the observable universe is about 46 billion light years, which is considerably greater than its age of about 14 billion years.

Dec 29, 2019 · The observable universe, however, was smaller because there's a finite amount of stuff in it, and it was closer together. Also, the observable universe is defined as the volume …

May 13, 2023 · Usually states and observables are treated as fundamentally different entities in quantum theory. But are they really different? Yes, they are different. There are basic …

Nov 19, 2017 · The following is one chapter in a series on Mathematical Quantum Field Theory. The previous chapter is 6. Symmetries. The next chapter is 8. Phase space. 7. Observables In …

Oct 24, 2020 · The importance of the observable universe is emphasized for Earth-based observers, while acknowledging that other observers, such as those on different planets, …

Jan 28, 2018 · The discussion revolves around the distinction between the observable universe and the entire universe, exploring concepts related to cosmology, the Big Bang, and the …

Sep 6, 2021 · This discussion critically examines the role of non-observable assumptions in physical theories, particularly in quantum mechanics (QM) and relativity. It highlights that while …

Nov 7, 2018 · The Born rule states that if an observable corresponding to a self-adjoint operator with discrete spectrum is measured in a system with normalized wave function (see Bra–ket …

Mar 16, 2024 · The observable universe is the region from which light has had time to reach us since the Big Bang; it therefore has a finite radius and finite volume. By contrast, the term …

Oct 3, 2012 · 'Observable' is simply a name; it means that there is an hermitean operator with real eigenvalues which can in principle correspond to results of measurements. If you don't like this …