Saturday, 6 June 2026

Mixed updates

 A few updates:

1. The BBC got in touch last week to ask if I'd look at a press release and embargoed preprint on quantum computing to give some expert commentary.  The work turned out to be from Microsoft, claiming another breakthrough in their desire to fabricate functional majorana qubits.  The preprint shows their "multi-qubit" tetron device, with signals coming from its operation.  What was not terribly clear was if they were really claiming that their qubits were functional yet, or if the long lifetime of a mode that the were claiming was a clear signal of a relevant quantum effect.   I could do no more than give a general comment about what it would mean if it were all as Microsoft claim, and caution that it might not be. The BBC wrote it up here

2. I organised an end-of-semester nuclear theory gathering at my house last weekend.  The day was dry (unlike today as I write this) and not too hot, unlike some of the days leading up to it.  We had a good turnout from group members - academic staff, phd students, visitors and associated family members.  Here's a picture of the gathering (minus me, taking the picture).  You can click on it to see it in higher resolution, if you like:

 

3. I made a virtual visit to on MPhys student on placement at the Univesity of Barcelona with our old colleague Arnau Rios.  Ben (the student) is working on applying quantum computational methods to solve the nuclear shell model - very much something I am working on too. 

4. A sad incident on campus this week made the UK national news - an ex-student shot and seriously injured a campus security team member.  Fortunately, it seems that the injured person will fully recover - physically at least.  The shooter is a Saudi national, and there have been correspondingly unhelpful comments on social media that play into the febrile atmosphere we have right now where far-right parties stir up hatred against immigrants. In fact, as I write this, listening to 6music on the radio, the news has come on that JD Vance sees fit to make pronouncements that we (white British people, I think he means) should be "righteously angry" about "mass immigration" (see e.g. this).  Fortunately no "Farage Riots" have happened in Guildford as they recently did in Southampton. 

5. I've ended up agreeing to go to a few meetings coming up, which has me travelling around the world.  I have not travelled far outside Europe in the last couple of years (furthest being to the Asian part of Türkiye), but I have an invited talk at Nuclear Structure 2026 in Vancouver next month, and then will go to the Compound Nuclear Reactions (CNR) conference in Fukuoka in October.  This week, we had a seminar from Tomoya Naito from Tokyo, who mentioned that I would be invited to a workshop in Japan the week after CNR, and lo and behold an invitation arrived later that day.  I accepted, though being away for two weeks is something I used to do more when I was younger, and am a bit less keen on now.  Should be a good meeting, though.

6. Planning proceeds steadliy with our Nuclear Data conference taking place in September: UK Nuclear Data 2026, which we loftily subtitle "A Renaissance".  There is actually a nuclear physics conference taking place in the UK next week - Clusters '26 - which looks pretty cool, and is not a million miles from some of my activity ... but it's just a conference too far in terms of finding time to do something a bit too niche for me.  Nevertheless, I'll be mentioned by collaborators who are speaking there because of work we've done together supervising PhD students.  

Thursday, 23 April 2026

Gruppenbild mit Physiker

 The organisers of the meeting in Rome last week just sent through the group photos we had taken, so I thought I'd share them here for posterity.

The first, from Thursday 16th April, shows those present at the Nuclear Science Symposium, organised as a satellite meeting to the IUPAP WG9/C12 AGM (don't ask me what all that means).  Those scheduled to attend the Friday meeting (including me), were invited to attend this symposium


 The second, from Friday 17th April, shows those present just for the Friday committee meeting of NuPECC (the Nuclear Physics European Collaboration Committee).  I am standing at the back in the middle on both photos.  I'm pretty tall, and I usually head to the back in group photos

 


Friday, 17 April 2026

RIP Günther Rosner

I missed posting about this last month, but I have been reminded about the recent death of Günther Rosner as part of the chair's presentation in the NuPECC committee meeting I am attending today.

Günther was a professor in the UK (at Glasgow) when I started working at Surrey back in 2000, and I remember coming across him at various meetings over the years he was in the UK.  I never knew him personally, but I remember him as a very enthusiastic person who devoted much time to supporting the field politically.  

There's a short obituary of him at the FAIR website, from which I take the photo below

 

Thursday, 16 April 2026

From the Enrico Fermi Research Centre

I'm at a meeting at the CREF - Centro Ricerche Enrico Fermi - in Rome.  The building is inside a government compound shared with the Italian Interior Ministry, so is slightly bureaucratic to get into, but the centre is here as it is the building where Enrico Fermi worked.  There is a museum here which I hope to go to later, but as proof that this place has some nuclear physics history, here's a picture of a fountain with a plaque in front, which reads "Using the water of the goldfish fountain of his institute, Enrico Fermi established for the first time in the afternoon of 22 October 1934 the crucial role of hydrogenous substances on neutron-induced radioactivity thus opening the way to the use of slow neutrons in nuclear fission chain reaction"


 

Friday, 27 February 2026

The Isomer League

My University produced a press release yesterday highlighting three of my colleagues and their industry in discovering nuclear isomers.  Isomers (for nuclear physicists) are long-lived excited states of nuclei that decay with different properties (such as half lives) to the ground states or other excited states in the same nucleus.  

The industriousness of my colleagues comes from a league table of coauthorship of isomer discovery papers.  Surrey authors take three of the top 10 positions in the table.  We also have some other people a bit further down:  Bill Gelletly at #49, Wilton Catford at #139, Dan Doherty at #733, and ... me (Paul Stevenson) at #486.

The point of any of the research is not to top a league table, and the website that generated the table has, as its main purpose, the role of documenting discovery and keeping an authorotative record of how, when and where each isotope was discovered.  The league table is just a bit of natural human interest addition to the history.  

Here is a screengrab of the top of the table

 

Friday, 6 February 2026

Fire at GSI/FAIR

I got forwarded a press release from the GSI / FAIR facility in Germany describing a "major fire" which happened there yesterday.  The fire happened in the "GSI" part - the longstanding facility which has been conducting research in nuclear physics for many years (the SI in GSI is Schwerion = heavy ion).  FAIR is the linked site where they are building a new facility, which is apparently unaffected by the fire.  

The main piece of specific information in the press release is the UNILAC linear accelerator building is "severely affected" by the fire.   This is perhaps the worst bit of the facility to have a problem with, as it is the starting point for the rest of it.  The linear accelerator takes ions from a source and accelerates them to then be passed to all sorts of other beam lines.  No UNILAC means no beams at any part of the facility.  I don't know just how bad things there are, but on the face of it, the news sounds bad. 

Here's a diagram showing the UNILAC provide beam for the rest of the GSI facility, and how the GSI facility then sends a beam to the new FAIR project built next to it

Figure 1 from Upgrade of the UNILAC for FAIR | Semantic Scholar 

Sunday, 1 February 2026

The latest funding upheaval

The last week has seen the outcome of the recent UK government spending review trickle down through all the levels of the science funding structure.  From the STFC council came a headline announcement for many doing "curiosity-driven" research in Nuclear Physics, Particle Physics, and Astronomy:  That there will be a ~30% reduction in the budget for such activities, at least in the grant lines that have traditionally funded them.  This is obviously unwelcome news to all of us in any of these communities, worried as we are about our own jobs, current and future jobs for the young researchers we are teaching or mentoring, and for the international standing of the UK in international projects and collaborations. 

The news coverage has generally focussed on the potential negative results of these cuts.  Here's an example from the American Science Magazine.

Ian Chapman, the head of UK Research and Innovation – UKRI – which is the umbrella organisation at the top of all government funding councils, today wrote an open letter giving some more context about the decisions across all funding councils.  It attempts to place the details of the STFC council outcomes in a wider context of directions from the goverment, as well as the international situation with large-scale facility support in the STFC budget.  There is mention of "doing fewer things better", which has felt like a mantra for the whole 30 years I have been working in science research in the UK, and has felt at my least cynical that it is the UK managing its relative decline in standing in the world, and at my most that it is due to the lobbying of large groups and/or large universities to grab money for themselves.  Some useful context in Chapman's letter implied that even with fixed or modest increases of funding, emerging areas (such as AI) crowd out older fields in their demand for a share of funding, and cross the research council remits so that new funding calls are less likely to sit in single-council traditional grant rounds. None of that sounds obviously unreasonable to me, and I'm not at all wedded to the idea that we should carry on at all times doing things the same way we have always done.  Whether reasonable support and opportunities will be given to researchers to move into new areas by funders and employers will be key here.  I don't mind well-managed change, though bonkers tech-bro break-things-and-see-what-happens is something I am wary of, as it is popular with some in power. 

Nuclear physics, as ever in my time in the UK, sits in an uneasy place.  The more "fundamental" physics bits of the nuclear world (as opposed to e.g. nuclear engineering or applications in radiation protection or medicine)  moved away from the EPSRC council many years ago, with the general consent of the nuclear physics commnunity, into the newly-formed STFC.  Here, it was hoped, the lack of immediate application which had made us the poor relations of EPSRC, would be no issue.  In the end, I think the nuclear physics community has felt like the poor relation in STFC which you can often hear described as the particle and astro council, forgetting the tiny nuclear component. We have gone from being the least applied field in EPSRC to the most applied in STFC.  But thanks to the applications of nuclear physics, we have some hope.  For example, this coming week we're expecting the announcement of the funding of Nuclear Skills Doctoral Focal Awards (to train new PhD students).  We (the "blue skies" nuclear physics community) have joined this call eagerly, knowing we are well-placed to provide skills for the wide nuclear industry, and because of things like this, I am not as pessimistic as I might have been in the past at the raw 30% headline announcement of a cut.  By itself, an increase in student numbers alongside a decrease in research jobs for the students to go into is not where all of us want to be, but as someone who has been able to access cross-field nuclear/quantum research job funding, I have to remain cautiously optimistic that such opportunities to break out of our traditional path will become increasingly more available to us.  

As usual, I want to include a picture on each blog post.  I'm not sure what fits here best, so here's a direct link to the picture UKRI used on the open letter from Ian Chapman.  The URL gives the file title as UKRI-010226-Stock_abstract-rectangular-metal-tiling-building-facade_Unsplash.jpg so I guess that's what it is