Reality as a Vector in Hilbert Space
- URL: http://arxiv.org/abs/2103.09780v1
- Date: Wed, 17 Mar 2021 17:07:14 GMT
- Title: Reality as a Vector in Hilbert Space
- Authors: Sean M. Carroll
- Abstract summary: I defend the extremist position that the fundamental ontology of the world consists of a vector in Hilbert space evolving according to the Schr"odinger equation.
The structure of our observed world, including space and fields living within it, should arise as a higher-level emergent description.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: I defend the extremist position that the fundamental ontology of the world
consists of a vector in Hilbert space evolving according to the Schr\"odinger
equation. The laws of physics are determined solely by the energy eigenspectrum
of the Hamiltonian. The structure of our observed world, including space and
fields living within it, should arise as a higher-level emergent description. I
sketch how this might come about, although much work remains to be done.
Related papers
- Primer on quantum weirdness [0.0]
We assume knowledge of basic quantum mechanics.
We explicate ideas as projectors, density operators, Bell inequalities, entanglement and the Lindblad equation.
arXiv Detail & Related papers (2024-08-13T18:06:02Z) - A non-hermitean momentum operator for the particle in a box [49.1574468325115]
We show how to construct the corresponding hermitean Hamiltonian for the infinite as well as concrete example.
The resulting Hilbert space can be decomposed into a physical and unphysical subspace.
arXiv Detail & Related papers (2024-03-20T12:51:58Z) - Lagrangian partition functions subject to a fixed spatial volume
constraint in the Lovelock theory [0.0]
We evaluate the quantum gravity partition function that counts the dimension of the Hilbert space of a simply connected spatial region of fixed proper volume.
We find that there exists sphere saddle metrics for a partition function at a fixed spatial volume in Lovelock theory.
arXiv Detail & Related papers (2024-02-22T02:34:05Z) - The prince and the pauper. A quantum paradox of Hilbert-space
fundamentalism [0.0]
The quantum world is described by a unit vector in the Hilbert space and the Hamiltonian.
This thesis was previously refuted in (arXiv:2102.08620) in full generality.
Here I show that concrete physically distinct worlds can be described by the same unit vector and evolve according to the same law.
arXiv Detail & Related papers (2023-10-23T16:54:05Z) - (Re)Construction of Quantum Space-Time: Transcribing Hilbert Into Configuration Space [0.0]
Space-time in quantum mechanics is about bridging Hilbert and configuration space.
New perspective is obtained by replacing the Newtonian space-time theater with the image of a presumably high-dimensional Hilbert space.
arXiv Detail & Related papers (2023-08-18T17:59:33Z) - Quantum thermodynamics of de Sitter space [49.1574468325115]
We consider the local physics of an open quantum system embedded in an expanding three-dimensional space.
For a de Sitter space with Hubble parameter $h = $ const., the background fields act as a physical heat bath.
arXiv Detail & Related papers (2023-07-10T18:00:09Z) - Measurement phase transitions in the no-click limit as quantum phase
transitions of a non-hermitean vacuum [77.34726150561087]
We study phase transitions occurring in the stationary state of the dynamics of integrable many-body non-Hermitian Hamiltonians.
We observe that the entanglement phase transitions occurring in the stationary state have the same nature as that occurring in the vacuum of the non-hermitian Hamiltonian.
arXiv Detail & Related papers (2023-01-18T09:26:02Z) - Continuous percolation in a Hilbert space for a large system of qubits [58.720142291102135]
The percolation transition is defined through the appearance of the infinite cluster.
We show that the exponentially increasing dimensionality of the Hilbert space makes its covering by finite-size hyperspheres inefficient.
Our approach to the percolation transition in compact metric spaces may prove useful for its rigorous treatment in other contexts.
arXiv Detail & Related papers (2022-10-15T13:53:21Z) - On the Birth of the Universe and Time [62.997667081978825]
Theory is based on a quantum representation in which the action functional is implemented as an operator on the space of wave functionals.
An estimate of the initial radius of the universe is proposed.
arXiv Detail & Related papers (2022-03-24T11:09:59Z) - Reformulation of Quantum Theory [0.0]
The standard quantum mechanics over a complex Hilbert space, is a Hamiltonian mechanics, regarding the Hilbert space as a linear real manifold equipped with its canonical symplectic form and restricting only to the expectation-value functions of Hermitian operators.
We reformulate the structure of quantum mechanics in the language of symplectic manifold and avoid linear structure of Hilbert space in such a way that the results can be stated for an arbitrary symplectic manifold.
arXiv Detail & Related papers (2022-01-03T17:15:35Z) - Projection evolution and quantum spacetime [68.8204255655161]
We discuss the problem of time in quantum mechanics.
An idea of construction of a quantum spacetime as a special set of the allowed states is presented.
An example of a structureless quantum Minkowski-like spacetime is also considered.
arXiv Detail & Related papers (2019-10-24T14:54:11Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.