<div id="__MailbirdStyleContent" style="font-size: 10pt;font-family: Arial;color: #000000;text-align: left" dir="ltr">
Hyvää alkavaa viikkoa fyysikkokerholaiset!<div><br></div><div>Perjantaina taas fysiikan kollokvio fys1:ssä. Alla laitoksen kutsu tapahtumaan.</div><div><br></div><div>Antero Voutilainen,</div><div>Fyysikkokerho ry, puheenjohtaja</div><div><div><div class="mb_sig"></div><div class="history_container"><p style="color: margin-top: 10px;">------ Forwarded Message --------<br>From: Tero Tapio Heikkilä <tero.t.heikkila@jyu.fi><br>Date: 6.11.2023 14.14.53 <br>Subject: Andreas Norrman (UEF): Quantum Complementarities in Vectorial Light Fields, in the physics colloquium <br>To: jyflstaff@korppi.jyu.fi <jyflstaff@korppi.jyu.fi>, Heinosaari, Teiko <teiko.heinosaari@jyu.fi>, Antero Voutilainen <puheenjohtaja@jyfk.fi><br></p><div style="font-family:Arial,Helvetica,sans-serif">
<p>Welcome to the University of Jyväskylä physics colloquium. <br>
</p>
<p> On Friday 10th November at 10 am in FYS1 and <a href="https://jyufi.zoom.us/j/66703175507">Zoom</a> (passcode
890524):</p>
<p><b>Andreas Norrman</b>, Center for Photonics Sciences, University
of Eastern Finland</p>
<p><i>Quantum Complementarities in Vectorial Light Fields</i></p>
<p><span style="font-size: 10pt">The principle of complementarity, dictating that
quantum systems share mutually exclusive qualities, has had<br>
a major significance for the foundations of physics and even a
profound impact on the interpretation of the<br>
fundamental nature of reality [1]. The arguably most recognized
manifestation of quantum complementarity<br>
is wave–particle duality, which puts a trade-off for the wave
and particle characteristics of a quantum object.<br>
Such duality can be formulated in a quantitative manner in
two-way interferometry, stating that “which-path<br>
information” (particle behavior) is complementary to the
visibility of intensity fringes (wave behavior) [2].<br>
Photons, however, may exhibit interference not only in the form
of intensity fringes but also in the form of<br>
polarization-state fringes, a unique property of vectorial
(nonuniformly polarized) light that has to date been<br>
mostly ignored in complementarity contexts. Here we consider
implications of such polarization modulation<br>
in the seminal double-slit setup and establish a set of general
complementarity relations for quantized vector-<br>
light fields [3–5], revealing several foundational aspects about
the dual wave–particle nature of the photon.</span></p>
<p><span style="font-size: 10pt">[1] A. Zeilinger, “Experiment and the foundations
of quantum physics”, Rev. Mod. Phys. 71, S288–S297 (1999).<br>
[2] B.-G. Englert, “Fringe visibility and which-way information:
an inequality”, Phys. Rev. Lett. 77, 2154–2157 (1996).<br>
[3] A. Norrman, K. Blomstedt, T. Setälä, and A. T. Friberg,
“Complementarity and polarization modulation<br>
in photon interference”, Phys. Rev. Lett. 119, 040401 (2017).<br>
[4] A. Norrman, A. T. Friberg, and G. Leuchs, “Vector-light
quantum complementarity and the degree of<br>
polarization”, Optica 7, 93–97 (2020).<br>
[5] E. Pillinen, A. Halder, A. T. Friberg, T. Setälä, and A.
Norrman, “Geometric phase and wave–particle<br>
duality of the photon”, arXiv:2310.20273 (2023).<i><br>
</i></span></p>
<p>Welcome!</p>
<p> Coffee will be served in the lobby. Although on-site attendance
is the preferred option, you can also join via Zoom. Please do not
send chat messages in Zoom during the talk, except if you need to
tell about a muted speaker. <br>
</p>
<p>Confirmed colloquium talks in the Fall 2023 (you are welcome to
suggest more - there are still open slots):<i><br>
</i>17.11. Thomas Cocolios (KU Leuven): <i>Novel radionuclides
for medical applications: from the nuclear lab to patients<br>
</i>20.12. Leendert Hayen (LPC Caen): <i>TBA</i></p>
Tero & Iain
<p></p>
<p></p>
<pre class="moz-signature" cols="72">--
Tero Heikkilä
Professor, Department of Physics
University of Jyväskylä</pre>
</div></div>
</div></div></div>