[PhilPhys] Lisbon Philosophy of Physics Seminars: Laurie Letertre (May 31 on Zoom)

[Andrea Oldofredi]

Dear List Members,

On Wednesday May 31 Laurie Letertre (LMU Munich) will give a talk at the Lisbon
Philosophy of Physics Seminars titled "*Temporal nonlocality from
indefinite causal orders*" (abstract below).

These events are organized in the context of the activities of the LanCog
Research Group <https://cful.letras.ulisboa.pt/lancog/> at the Centre of
Philosophy of the University of Lisbon, and they will focus on the
foundations of quantum and spacetime physics.

The meeting will be held on Zoom (17:00-19:00 CEST). If you have not
registered yet, you can do so here
<https://docs.google.com/forms/d/1pe9-CUZwKFA_uS0j-wD7bRQatIO-SdzxBqKlmkM6XOY/edit?usp=drive_web>
.

You can address any question to Andrea Oldofredi (
aoldofredi at letras.ulisboa.pt).

ABSTRACT:
Previous works explored the possibility of a genuinely temporal counterpart
to Bell nonlocality, one that would refer to the presence of non-classical
correlations between timelike-separated events. This paper argues that
famous existing proposals do not properly target an adequate notion of
nonlocality along the temporal dimension. It is proposed to focus instead
on a more recent definition of temporal nonlocality provided by [Adlam, E.
(2018). "Spooky action at a temporal distance." Entropy 20(1), p.41]. This
paper explores to what extent causal nonseparability is a necessary
ingredient to Adlam’s temporal nonlocality, and can therefore be used to
test that principle. It is explained how indefinite causal orders allow
testing standard Bell nonlocality, noncausality of processes, and Adlam’s
temporal nonlocality, which allows clarifying the relation between these
notions. Finally, contrary to what has been claimed in the literature, it
is argued that, while the presence of temporal delocalisation of quantum
systems is frame-dependent, a model-independent detection of temporal
nonlocality can still be obtained.



Best regards,

Andrea Oldofredi
----------

Dr. Andrea Oldofredi

Postdoc FCT

Internet Resources:
https://unil.academia.edu/AndreaOldofredi
https://www.researchgate.net/profile/Andrea_Oldofredi

Mailing Address:
University of Lisbon
Centre of Philosophy
Alameda da Universidade, 1600-214, Lisbon
Portugal
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