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## Main Question or Discussion Point

I have a major in mathematical physics and mathematics and I've started on graduate school january of the last year to get a master's degree in theoretical physics.

My real interest is fundamental physics, specialy related to general relativity and quantum field theory. I've talked to a physicist I knew since the begining of my undergraduate course and he accepted to be my advisor. He suggested QFT on curved spacetimes, using the algebraic approach. It is important to add that he and most physicists working on GR related subjects on this university are on the math department.

Unfortunately a month latter he passed away. I sought another physicist close to him and his research. He suggested me to search for two other professors, because he was going to spend a year out of the country.

The first one, closer to my interests, said he would happily accept to be my advisor, but being from the math department it was mandatory that I had one coadvisor from the physics department and he wound't accept it.

I sought the second one, but he said he didn't work with QFT. He proposed me a work on "extended bodies on curved spacetimed" using Dixon's approach. By the sound of it, I wasn't interested, but I wanted to be nice and said it was a nice topic.

There was a deadline to pick the advisor, and I was being pressed by it, so feeling out of options, I've tried to find a coadvisor, and accept this work, but in the end I simply couldn't find one. In the process, that professor believed I was somehow interested on the topic.

Since I wasn't finding any advisor on the physics department, the graduate course coordinator decided to allow me to have the first professor as my advisor without coadvisor. The issue is that another student was unhappy with her advisor, and said to the coordinator she demanded to have this professor as her advisor.

The coordinator assigned him to advise her, and the other guy to advise me. The professor then gave me the work on extended bodies in GR and I felt bad to say no because of the deadline and because it was already one exception. What he wants me to do: solve the problem of a dumbell of oscilating length falling on a Schwarzschild spacetime.

Now, as I said, I'm interested in fundamental physics and this problem is solving one exercise, of a system imagined by him to "test the math", not a system existing in nature with real motivations to investigate. To tell the truth, first semester last year I took one QFT course, and after going through QFT and studying important things that do occur in nature, it is being

I might add that when I said I was interested on GR it wasn't this. I meant the study of spacetime itself, the solutions to Einstein's equations, and so on. Most important: the fundamental physics aspects, concerning real systems, not ones invented for proposing exercises. On one hand, outside of my master's thesis I would happily one day study Dixon's formalism, while on the other hand, spend time on this problem is something I would never do if I could choose.

I worked on it for three months last year, and I'm really unhappy because it is not the direction I wanted to follow. I've felt embarrassed to tell him openly, so I've implied several times I didn't like what I was doing, but he didn't care much. Last time he even said he is obscessed with this problem.

I don't know what to do. On one hand I feel it is too late to do anything and I feel embarrassed to talk to him about the matter, on the other hand, I'm feeling really bad with this. I need advice. What should I do?

My real interest is fundamental physics, specialy related to general relativity and quantum field theory. I've talked to a physicist I knew since the begining of my undergraduate course and he accepted to be my advisor. He suggested QFT on curved spacetimes, using the algebraic approach. It is important to add that he and most physicists working on GR related subjects on this university are on the math department.

Unfortunately a month latter he passed away. I sought another physicist close to him and his research. He suggested me to search for two other professors, because he was going to spend a year out of the country.

The first one, closer to my interests, said he would happily accept to be my advisor, but being from the math department it was mandatory that I had one coadvisor from the physics department and he wound't accept it.

I sought the second one, but he said he didn't work with QFT. He proposed me a work on "extended bodies on curved spacetimed" using Dixon's approach. By the sound of it, I wasn't interested, but I wanted to be nice and said it was a nice topic.

There was a deadline to pick the advisor, and I was being pressed by it, so feeling out of options, I've tried to find a coadvisor, and accept this work, but in the end I simply couldn't find one. In the process, that professor believed I was somehow interested on the topic.

Since I wasn't finding any advisor on the physics department, the graduate course coordinator decided to allow me to have the first professor as my advisor without coadvisor. The issue is that another student was unhappy with her advisor, and said to the coordinator she demanded to have this professor as her advisor.

The coordinator assigned him to advise her, and the other guy to advise me. The professor then gave me the work on extended bodies in GR and I felt bad to say no because of the deadline and because it was already one exception. What he wants me to do: solve the problem of a dumbell of oscilating length falling on a Schwarzschild spacetime.

Now, as I said, I'm interested in fundamental physics and this problem is solving one exercise, of a system imagined by him to "test the math", not a system existing in nature with real motivations to investigate. To tell the truth, first semester last year I took one QFT course, and after going through QFT and studying important things that do occur in nature, it is being

*demotivating to work on this.***extremely**I might add that when I said I was interested on GR it wasn't this. I meant the study of spacetime itself, the solutions to Einstein's equations, and so on. Most important: the fundamental physics aspects, concerning real systems, not ones invented for proposing exercises. On one hand, outside of my master's thesis I would happily one day study Dixon's formalism, while on the other hand, spend time on this problem is something I would never do if I could choose.

I worked on it for three months last year, and I'm really unhappy because it is not the direction I wanted to follow. I've felt embarrassed to tell him openly, so I've implied several times I didn't like what I was doing, but he didn't care much. Last time he even said he is obscessed with this problem.

I don't know what to do. On one hand I feel it is too late to do anything and I feel embarrassed to talk to him about the matter, on the other hand, I'm feeling really bad with this. I need advice. What should I do?