I'm writing to inquire whether or not the order in which the names of the authors is mentioned has any bearing? Here's my case:

I started working on a project with a professor in the physics department last summer. The project is almost finalized and we're in the stage of finalizing the final draft for submission. Since I'm an undergraduate, I'm not the one who came up with the problem. The instructor suggested the problem to me (and now that I think of it, the problem seems like a very natural question to ask based on a work the said professor published last summer). He has been available for feedback all throughout the duration of the project. For instance, he helped me derive the first closed form result of the paper; he also guided me through every stage of the project -- from guiding how to approach to the problem to helping debug the code when I couldn't make it work in the initial stages.

Having said that, the professor didn't contribute directly to the project, in addition to helping and guiding me throughout the project. I'm the one who worked through most of the results and went through all the computational tasks. In addition, I'm the one has written the final draft that we have uptil now; he simply helped me edit the template once.

When I met the professor the last time around, he was editing the template and he listed his name as the first name, and my name as the second name on the paper. Naturally, I didn't say anything.

My question is: does the order in which the names are mentioned matter? Does the answer to this question vary from discipline to discipline, even from one area of research to another area of research within the same discipline.

Here's some information that may help answer the question:

The nature of the physics-related paper can be classified using the keywords: "Quantum Dynamics," "Quantum Mechnaics," "Quantum Information" and "Open Quantum Systems." We're trying to get the paper published in Scientific Reports.

Side note: I'm an undergraduate student. Since I'm not technically affiliated with a university (I pay to attend the university, the professor is paid to be there), does this have any bearing on the answer to the question.

  • See also What does first authorship really mean?. Since this related question does not have a physics-specific answer yet, I hope it's OK if I change your question to be about physics specifically. Commented Jan 14, 2017 at 12:22
  • If you are a student, you are affiliated. Commented Jan 15, 2017 at 4:47
  • Are there only two people on the paper? If only two, don't worry that much either way.
    – AJK
    Commented Jan 15, 2017 at 5:42
  • @AJK Yes, there are only two authors. Should I be worrying too much about it? The only thing I'm concerned about is how would this issue affect how admissions committee (graduate school) view my potential publication. Commented Jan 15, 2017 at 13:42
  • @JunaidAftab Most students (at least in math) who get accepted even in top schools' graduate programs haven't published anything. So do not worry. Commented Feb 14, 2017 at 9:39

2 Answers 2


Physics has two broad conventions: the closer you are to high energy physics/particle physics/string theory/mathematical physics, the more likely you are to see alphabetical ordering. However, within condensed matter and biophysics, you generally see "First author = trainee primarily responsible for work." (I think astrophysics is more mixed).

There is actually some empirical data on alphabetical authorship by field here: Waltman arxiv:1206.4863 which confirms this general impression.

In quantum information, you might be at the edge of the condensed matter and "mathematical physics" conventions. Take a look at your advisor's other papers - are they alphabetical? Or are grad students and postdocs within the group usually listed as first?

Also, within fields where author order matters, the implication of "second of two authors" can be very different than, say, "second of five authors." With two authors, there is often the presumption of nearly-equal contributions. However, someone who is second of many may have, e.g., provided a figure's worth of data.

Your description would be broadly consistent with being a first author in most fields. (This assumes that there are not other people who contributed, who you have not mentioned - sometimes undergraduates are not given the best picture of what contributions are there.)

If this does not clear things up, I think it is fine to ask your advisor why he set the author order the way he did.

  • The professor hasn't written papers with students -- undergraduates or postgraduates -- before. I'm from a college in Pakistan; over here, the research culture, for one, is pretty bleak. Moreover, the we don't have a lot of postgrad's here. The professor has almost exclusively collaborated with his PhD supervisor; I'm not too sure whether the ordering was alphabetical in those cases since my professor's name starts with an A. I don't really understand the second last paragraph. Also, I'm still confused what to do? Any suggestions? Commented Jan 15, 2017 at 14:44
  • The second-to-last paragraph is saying that in many fields, you would be chosen as the first author, unless there were other people who did more work you didn't mention. (Not applicable, as I see there is only you and your professor!)
    – AJK
    Commented Jan 15, 2017 at 20:05
  • My advice is that first or last authorship on a two-author paper will probably look equally as good in grad school admissions. In your CV or other application materials, you can briefly describe the work you did (and hopefully your advisor will also note this in your letter) - this will show what you are capable of. You can even note that the authorship was arranged alphabetically, to clarify this point.
    – AJK
    Commented Jan 15, 2017 at 20:09
  • 1
    There is also probably nothing wrong with asking your advisor why he changed the name order, as long as you do it politely, e.g. "I'm new to the field and trying to understand its conventions - why did you choose the names to go in this order?" This will probably not change anything, but will help you understand what your advisor is thinking.
    – AJK
    Commented Jan 15, 2017 at 20:11
  • (Definitely be as polite as possible - this is the sort of thing advisors can be touchy about, and if you are already feeling hurt, you can end up asking these questions rudely by accident.)
    – AJK
    Commented Jan 15, 2017 at 21:02

In physics, typically the first author is the person who did the most work. The last author is the person who supervised the work. If there are multiple supervisors their names go near the end of the list.

There are exceptions, particularly in cases where the number of authors is very large.

  • I am not sure this is universal -- for example, I thought that in high energy theory it is almost always alphabetical. Commented Jan 15, 2017 at 5:06
  • I actually believe there is not set convention, except that the last author often (but not always) functions as imprimatur for the work.
    – user67075
    Commented Jan 16, 2017 at 5:01

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