Possibility Of Teleportation Research Articles

Evaluation of remote services and patient satisfaction - a qualitative study

BACKGROUND: Telemedicine is among the most modern branches of medicine. In the field of mental health, telepsychiatry makes it possible to replace the traditional conversation with a specialist with an e-visit. With the development of remote services, qualitative studies evaluating this type of service have begun to be conducted. The studies involve both patients and clinicians. The purpose of this study is to show the advantages perceived by patients who use telepsychiatry services, as well as concerns that may discourage further use of digital therapy. The study also includes an evaluation of telemedicine services. Material and methods: The authors created a proprietary structured questionnaire that consisted of two parts. The first concerned sociodemographic data, while the second addressed the subject of patients' evaluation with the use of telepsychiatry services, possible difficulties during e-visits and satisfaction with this type of consultation. Before completing the survey, patients filled out informed consent. The survey was conducted from November 2022 to May 2023. Results: The final group of respondents was formed by 432 people. The largest group of respondents were patients with the diagnosis: affective disorders - 24.07%. The vast majority of respondents - 81.94% - indicated the possibility of teleportation from anywhere in the world as the greatest advantage of telepsychiatry. Another advantage is not having to take time off from work or school - 78.94%. Major disadvantages included: limited treatment methods (71.07% of respondents), made it more difficult to build a therapeutic alliance 59.03%, privacy and cybersecurity concerns 43.06%. Overall, patients rate telepsychiatry well - 66% of respondents were satisfied. Conclusions: Telepsychiatry is well rated among most patients. More research is needed to develop clear guidelines for digital therapy. Patients receiving remote therapy should be screened for the development of addiction to mobile devices and the Internet.

Information Processing in Convex Operational Theories

In order to understand the source and extent of the greater-than-classical information processing power of quantum systems, one wants to characterize both classical and quantum mechanics as points in a broader space of possible theories. One approach to doing this, pioneered by Abramsky and Coecke, is to abstract the essential categorical features of classical and quantum mechanics that support various information-theoretic constraints and possibilities, e.g., the impossibility of cloning in the latter, and the possibility of teleportation in both. Another approach, pursued by the authors and various collaborators, is to begin with a very conservative, and in a sense very concrete, generalization of classical probability theory – which is still sufficient to encompass quantum theory – and to ask which “quantum” informational phenomena can be reproduced in this much looser setting. In this paper, we review the progress to date in this second programme, and offer some suggestions as to how to link it with the categorical semantics for quantum processes offered by Abramsky and Coecke.

Universal teleportation via continuous-variable graph states

We present a universal protocol for continuous-variable graph-state teleportation. A mathematical model is established to determine an arbitrary graph state's properties, including the possibility of teleportation and the relevant analytical criteria. By investigating the properties of several fundamental graph-state types, we identify a general strategy for optimizing excess noise due to finite squeezing. As an application, a general scheme for teleportation between two arbitrary parties on a two-dimensional square lattice cluster state is given, along with a cheaper yet equivalent optimization for fixed source-target teleportation. Finally, a universal way to distill bipartite entanglement from a graph-state entanglement network is presented based on the equivalence between teleportation and entanglement distillation.

Ensemble teleportation under suboptimal conditions

The possibility of teleportation is certainly the most interesting consequence of quantum non-separability. In the present paper, the feasibility of teleportation is examined on the basis of the rigorous ensemble interpretation of quantum mechanics if non-ideal constraints are imposed on the teleportation scheme. Importance is attached both to the case of noisy Einstein–Podolsky–Rosen (EPR) ensembles and to the conditions under which automatic teleportation is still possible. The success of teleportation is discussed using a new fidelity measure which avoids the weaknesses of previous proposals.