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<p>Dear all,</p>
<p>we are inviting applications for a postdoctoral position in
numerical relativity and fundamental physics at the University of
Illinois Urbana-Champaign. The successful candidate will work with
Prof. Helvi Witek and her team, and they will have the opportunity
to collaborate on the Einstein Toolkit/CarpetX software framework.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">Applicant should submit their application
package <br>
</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;"></p>
(1) a cover letter,
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(2) a curriculum vitae, including a list of
publications,<br>
</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(3) a research statement (limited to 3
pages, 1 inch margin, 11-12pt) containing a summary of previous
and current research, and future research plans,</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(4) contact information for three (3)
referees who will be asked to write letters of recommendation,</p>
<p>by <span class="Apple-converted-space"></span><strong style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: inherit; font-weight: 700;">December 1, 2025</strong>,
here:<span class="Apple-converted-space"> </span><a href="https://my.physics.illinois.edu/join/" title="https://my.physics.illinois.edu/join/" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">https://my.physics.illinois.edu/join/</a><span class="Apple-converted-space"> </span>under “Postdoctoral
Position in Numerical Relativity and Fundamental Physics with Dr.
Helvi Witek – 2026.” The prospective start date of the position is
August 2026.<br>
</p>
<p>Please find the detailed announcement below.</p>
<p>Best wishes</p>
<p>Helvi<br>
</p>
<p>---<br>
</p>
<p id="isPasted" style="box-sizing: border-box; font-family: Aptos,
sans-serif; font-size: 16px; color: rgb(18, 27, 33); margin: 0in
0in 8pt; caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">The Illinois Relativity Group in the
Department of Physics at the University of Illinois at
Urbana-Champaign invites applications for a postdoctoral research
position with focus on numerical relativity, computational
astrophysics, and their applications to fundamental physics.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">The successful candidate will join Prof.
Helvi Witek and her team to work on numerical relativity in and
beyond general relativity, including tests of gravity or modeling
signatures of dark matter candidates around black holes. The
candidate is intended to partially work on the Einstein
Toolkit/CarpetX software framework and contribute to its hybrid
Monte-Carlo/M1 neutrino transport scheme as part of the “E=mc<sup style="box-sizing: border-box; font-family: inherit; font-size:
12px; color: inherit; position: relative; line-height: 0;
vertical-align: baseline; top: -0.5em;">2</sup>” project. This
is a multi-institutional project to develop numerical
infrastructure and methods, with collaborators at Louisiana State
University, Rochester Institute of Technology, University of
Idaho, University of Texas Austin, and the University of Wyoming,
and international collaborators R. Haas and E. Schnetter.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">Prof. Helvi Witek’s team is currently home
to postdoc Dr. Jay Kalinani, Visiting Research Scientist Dr. Elena
Kopteva, six graduate students and undergraduate students; see<span class="Apple-converted-space"> </span><a href="https://witek-gravity-group.physics.illinois.edu/" title="https://witek-gravity-group.physics.illinois.edu" style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: var(--il-industrial-blue); background-color:
transparent; text-decoration: underline;" class="moz-txt-link-freetext">https://witek-gravity-group.physics.illinois.edu</a>.
The successful candidate will become a member of the Illinois
Relativity Group which includes Profs. S. Shapiro, H. O. Silva, N.
Yunes, and Research Professor A. Tsokaros. They will also become
part of a vibrant research community in the Illinois Center for
Advanced Study of the University (ICASU;<span class="Apple-converted-space"> </span><a href="https://icasu.illinois.edu/" title="https://icasu.illinois.edu/" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">https://icasu.illinois.edu/</a>)
that bridges the Departments of Physics, Astronomy, Computer
Science, Mathematics and the National Center for Supercomputing
Applications (NCSA). ICASU faculty working in closely related
areas include Profs. C. Gammie, G. Holder, J. Noronha-Hostler, J.
Noronha, J. Shelton, and S. Vishveshwara. The successful candidate
will also have opportunities to join the LISA Consortium (<a href="https://lisamission.org/" title="https://lisamission.org" style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: var(--il-industrial-blue); background-color:
transparent; text-decoration: underline;" class="moz-txt-link-freetext">https://lisamission.org</a>) and
the Einstein Toolkit Consortium (<a href="https://einsteintoolkit.org/" title="https://einsteintoolkit.org" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">https://einsteintoolkit.org</a>).</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">The candidate should have a strong
background in scientific software development using
parallelization frameworks like MPI or in numerical relativity in
and beyond General Relativity. Expertise in GPU programming is
beneficial. Interested candidates must have completed a Ph.D. in
astronomy, physics, or a related field before the start date.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">They must submit their application package
online here:<span class="Apple-converted-space"> </span><a href="https://my.physics.illinois.edu/join/" title="https://my.physics.illinois.edu/join/" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">https://my.physics.illinois.edu/join/</a><span class="Apple-converted-space"> </span>under “Postdoctoral
Position in Numerical Relativity and Fundamental Physics with Dr.
Helvi Witek – 2026.” Applicants are requested to submit:</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(1) a cover letter,</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(2) a curriculum vitae, including a list of
publications,</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(3) a research statement (limited to 3
pages, 1 inch margin, 11-12pt) containing a summary of previous
and current research, and future research plans,</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">(4) contact information for three (3)
referees who will be asked to write letters of recommendation.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">The deadline for applications and all
letters of recommendation is<span class="Apple-converted-space"> </span><strong style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: inherit; font-weight: 700;">December 1, 2025</strong>,
for full consideration. The anticipated starting date of the
position is August 15, 2026, though other starting times may be
negotiated. The position is expected to last for a two-year term
with a potential extension to a third year, conditional on
performance and/or funding availability.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">Please contact Prof. Helvi Witek (<a href="mailto:hwitek@illinois.edu" title="mailto:hwitek@illinois.edu" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">hwitek@illinois.edu</a>)
if you have any questions about the position itself, or Deanna
Frye (<a href="mailto:ddebord@illinois.edu" title="mailto:ddebord@illinois.edu" style="box-sizing:
border-box; font-family: inherit; font-size: inherit; color:
var(--il-industrial-blue); background-color: transparent;
text-decoration: underline;" class="moz-txt-link-freetext">ddebord@illinois.edu</a>)
if you have any questions about the application form.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">The University of Illinois System is an
equal opportunity employer, including but not limited to
disability and/or veteran status, and complies with all applicable
state and federal employment mandates. Please visit<span class="Apple-converted-space"> </span><a href="https://www.hr.uillinois.edu/cms/one.aspx?portalId=4292&pageId=5705" style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: var(--il-industrial-blue); background-color:
transparent; text-decoration: underline;">Required Employment
Notices and Posters</a><span class="Apple-converted-space"> </span>to
view our non-discrimination statement and find additional
information about required background checks, sexual
harassment/misconduct disclosures, and employment eligibility
review through<span class="Apple-converted-space"> </span><a href="https://www.e-verify.gov/sites/default/files/everify/posters/EVerifyParticipationPoster.pdf" style="box-sizing: border-box; font-family: inherit; font-size:
inherit; color: var(--il-industrial-blue); background-color:
transparent; text-decoration: underline;">E-Verify</a>.</p>
<p style="box-sizing: border-box; font-family: Aptos, sans-serif;
font-size: 16px; color: rgb(18, 27, 33); margin: 0in 0in 8pt;
caret-color: rgb(18, 27, 33); font-style: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: auto; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: auto;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
background-color: rgb(255, 255, 255); text-decoration: none;
line-height: 18.4px;">Applicants with disabilities are encouraged
to apply and may request a reasonable accommodation under the
Americans with Disabilities Act (2008) to complete the application
and/or interview process.</p>
<p></p>
<p><br>
</p>
<pre class="moz-signature" cols="72">---------------------------------------------
Dr. Helvi Witek
Associate Professor
Department of Physics
University of Illinois at Urbana-Champaign
247 Loomis Lab
1110 W Green St
Urbana, IL 61801
---------------------------------------------</pre>
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