Quantum switch in the gravity of Earth
- URL: http://arxiv.org/abs/2012.03989v3
- Date: Wed, 6 Oct 2021 13:31:35 GMT
- Title: Quantum switch in the gravity of Earth
- Authors: Nat\'alia S. M\'oller, Bruna Sahdo and Nelson Yokomizo
- Abstract summary: We introduce a protocol for a quantum switch in the gravitational field of a spherical mass.
We determine the time interval required for its realization in the gravity of Earth.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We introduce a protocol for a quantum switch in the gravitational field of a
spherical mass and determine the time interval required for its realization in
the gravity of Earth. One of the agents that perform operations with indefinite
order is a quantum system in a path superposition state. Entanglement between
its proper time and position is explored as a resource for the implementation
of the quantum switch. The realization of the proposed protocol would probe the
physical regime described by quantum mechanics on curved spacetimes, which has
not yet been explored experimentally.
Related papers
- Quantum Sensing from Gravity as Universal Dephasing Channel for Qubits [41.96816488439435]
WeExploit the generic phenomena of the gravitational redshift and Aharonov-Bohm phase.
We show that entangled quantum states dephase with a universal rate.
We propose qubit-based platforms as quantum sensors for precision gravitometers and mechanical strain gauges.
arXiv Detail & Related papers (2024-06-05T13:36:06Z) - Indefinite order in the interface of quantum mechanics and gravity [0.0]
We discuss the notion of indefinite order, which first appears in an abstract generalization of Quantum Theory.
We present how scenarios involving gravity in low energies could lead to indefinite order.
arXiv Detail & Related papers (2023-10-03T01:16:27Z) - Quantum superpositions of Minkowski spacetime [0.0]
"Spacetime superpositions" are quantum superpositions of different spacetimes not related by a global coordinate transformation.
We consider the quantum-gravitational effects produced by superpositions of periodically identified Minkowski spacetime.
We show that the detector's response exhibits discontinuous resonances at rational ratios of the superposed periodic length scale.
arXiv Detail & Related papers (2022-08-25T13:31:05Z) - Quantum conformal symmetries for spacetimes in superposition [0.0]
We build an explicit quantum operator that can map states describing a quantum field on a superposition of spacetimes to states representing a quantum field with a superposition of masses on a Minkowski background.
It can be used to import the phenomenon of particle production in curved spacetime to its conformally equivalent counterpart, thus revealing new features in modified Minkowski spacetime.
arXiv Detail & Related papers (2022-06-30T18:00:02Z) - Quantum dynamics corresponding to chaotic BKL scenario [62.997667081978825]
Quantization smears the gravitational singularity avoiding its localization in the configuration space.
Results suggest that the generic singularity of general relativity can be avoided at quantum level.
arXiv Detail & Related papers (2022-04-24T13:32:45Z) - From geometry to coherent dissipative dynamics in quantum mechanics [68.8204255655161]
We work out the case of finite-level systems, for which it is shown by means of the corresponding contact master equation.
We describe quantum decays in a 2-level system as coherent and continuous processes.
arXiv Detail & Related papers (2021-07-29T18:27:38Z) - Indefinite Causal Orders from Superpositions in Time [0.0]
We derive a scheme in which superpositions in time are used to perform operations in an indefinite causal order.
We propose a specific implementation of the scheme and recover the Quantum SWITCH, where quantum operations are performed in an order which is entangled with the state of a control qubit.
arXiv Detail & Related papers (2021-07-16T18:39:26Z) - Quantum nature of time -- proposition of experimental verification [0.0]
The proposed experiment can show that it is possible to have superposition of being created in two different moments in time.
It is similar to the case of verification of the possibility of single quantum system to be in the state that is superposition of two different positions in space.
arXiv Detail & Related papers (2021-06-29T04:45:33Z) - Imaginary Time Propagation on a Quantum Chip [50.591267188664666]
Evolution in imaginary time is a prominent technique for finding the ground state of quantum many-body systems.
We propose an algorithm to implement imaginary time propagation on a quantum computer.
arXiv Detail & Related papers (2021-02-24T12:48:00Z) - Jumptime unraveling of Markovian open quantum systems [68.8204255655161]
We introduce jumptime unraveling as a distinct description of open quantum systems.
quantum jump trajectories emerge, physically, from continuous quantum measurements.
We demonstrate that quantum trajectories can also be ensemble-averaged at specific jump counts.
arXiv Detail & Related papers (2020-01-24T09:35:32Z) - 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.