TY - JOUR

T1 - Multiworld motives by closed time-like curves

AU - Shepelin, A. V.

AU - Rostom, A. M.

AU - Tomilin, V. A.

AU - Il’ichov, L. V.

N1 - Funding Information: The research was financially supported by the state order (project AAAA-A17-117052210003-4, the internal FASO number 0319-2016-0002) at the Institute of Automation and Electrometry SB RAS. Publisher Copyright: © 2021 Institute of Physics Publishing. All rights reserved.

PY - 2021/11/18

Y1 - 2021/11/18

N2 - We propose a new model, entitled S-CTC, for description of quantum systems in the presence of CTC – closed time-like curves. The model is based on the viewpoint on any quantum state as an observer’s state of knowledge of the system preparation procedure. We compare and contrast our S-CTC model with D-CTC and P-CTC models and show that S-CTC shares special quantum features with both D-CTC and P-CTC. As far as the interaction of the quantum system with itself coming from the future concerns, S-CTC is formally equivalent to P-CTC. On the other hand, when calculating outcome probabilities for a measurement within the time interval between the entrance and exit of CTC, S-CTC becomes equivalent to D-CTC. Both these models require the concept of alternative realities (worlds) where different measurement outcomes are recorded and alternative connections of these realities by CTC.

AB - We propose a new model, entitled S-CTC, for description of quantum systems in the presence of CTC – closed time-like curves. The model is based on the viewpoint on any quantum state as an observer’s state of knowledge of the system preparation procedure. We compare and contrast our S-CTC model with D-CTC and P-CTC models and show that S-CTC shares special quantum features with both D-CTC and P-CTC. As far as the interaction of the quantum system with itself coming from the future concerns, S-CTC is formally equivalent to P-CTC. On the other hand, when calculating outcome probabilities for a measurement within the time interval between the entrance and exit of CTC, S-CTC becomes equivalent to D-CTC. Both these models require the concept of alternative realities (worlds) where different measurement outcomes are recorded and alternative connections of these realities by CTC.

UR - http://www.scopus.com/inward/record.url?scp=85121516750&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/2081/1/012029

DO - 10.1088/1742-6596/2081/1/012029

M3 - Conference article

AN - SCOPUS:85121516750

VL - 2081

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012029

T2 - 22nd International Conference on Physical Interpretations of Relativity Theory - 2021, PIRT 2021

Y2 - 5 July 2021 through 8 July 2021

ER -