4/13/13

Alright, so I decided to take notes throughout the sessions I attended at APS April and effectively post them like a liveblog, but after the fact when all was said and done.

Here’s Saturday:

Conference day started with Kavli sessions; (only thing of note before then is that the first person to approach me in Denver was trying to sell me weed on my way to the conference -.- and that Herman Winnick liked my jacket XD)

8:30:

John Harris and Lattice QCD
Degrees of freedom increase with energy and level off after some number of MeV.
~175 MeV => Deconfinement
As T-> T_c, confinement potential decreases, rather than looking exponential as you increase the distance between quarks, you level off and then dip dowards.

RHIC 5-200 GeV, LHC 2.76- 5.5 TeV

ALICE has great pictures: http://www.symmetrymagazine.org/sites/default/files/breaking/wp-content/uploads/2010/11/ev71_3D.png

What is gluon shadowing? Strong flow? QGP has ultralow viscosity.
Initial conditions vary, n/s goes up, distribution smears out??
Ideal hydro is n/s=0 [n is actually an eta!!]
Excesses produces over the NLO predictions, why not go to NNLO…?
Color screening should happen, J/Psi and Upsilon should see this?

Labs go towards “hot” QGP, but neutron stars are “cold” and are dense, but low temperature in comparison.

9:00 am David Wineland.
One/two item system => macroscopics is silly – Schrdoinger
Wineland’s career started with precision msmts, and stuck to them.
Hans Dehmelt was influential in electron trapping/
If you shine a laser below the resonant frequency, atom cools. Use noise to detect the temp.
Goal is to isolate indiv. ions, Barium has a blue line…you can literally see a single atom!
Long life time => short wavelegth, hard for transitions.
State depndt fluorescence good for detection w/ quantum information.
After moving up to D5/2 re-emit in a delta n = 0 process,
So you reduce number by in the upper region then drop it down.
Conditional dynamics are good for logic gates.
Trapping kills off first order doppler effects -> 7 x 10^-17 accuracy below Cs clocks.
When the traps are down to 4K, coherence time increases from 10 min to months. optical clocks definitely beat cesium.

Laser has spin-dep force => super position of states motionally and spin. 80 nm, roughly microscopic compare to atom sizes.

Peter Shor – efficient factorization of large N in 1994,
Ekert presents Shor’s ideas at a Phys conference,
Zoller & Cirac 1995 PRL – mapping process that allows for entangling quantum states and performing quantum calculations.

Gravitational redshift becomes relevant at precision they can measure, hence optical clock is also a meter stick if you know g very well 😛
C.W. Chon 2010?

9:42  Planck results from Lloyd Knox at UC Davis.
SET and ACT have higher resolution msmts than Planck, but less frequencies.
They provide great consistency checks, though! 4 sigma ACT, 6 sigma SPT…Planck? 25 freaking sigma.
Stacking analysis is cool.
Radiation dominated era is over a massive scale factor change…
Density fluctuations came from a ~ 10^-45
“We are amplified quantum fluctuations” proposed as an alternative to “we are star stuff” lololol
As and Ns parametrize fluctuations, rho_r and gamma weak eq?
Reionization parametrized by a_rein

Decompose data into nodes; intermediate nodes have the greatest flux.
Sound horizon at last scattering determines the middle wiggles in the angular anisostropy
Diffusion length suppresses low angles.
Offset exists between Planck and WMAP on first bump…this is bad, and is not well understoof.
Use sound horizon -? a~10^-3 note that this produces angles visible on galactic scales. 2.5 sigma away from H0

David Tong was on a slide! Woooooo

B sessions? Yep. Those came next.

Shoji Hashimoto -KEK, Precision Lattice QCD.
“Valid in principle” Gimme money, get results.
1. Start with QCD L, give it alpha_s and m_f…ignore top mass or set it huge, I guess? mu=md and these are taken from mass of pion…this is isospin approx. Mass of mc and mb only relevant in valence and ms is taken from kaon properties.
We can now reproduce mass spectra for hadrons and the lepton decays constants!
We need to use theory to constrain Lattice Calculations.

alphaS is well predicted, Lattices take alpha-bare?
Nucleon charge radius fails though.
Pion data not great, why no m_pi^2 calculations at the experimental values…? [this was effectively answer later!]
2. What else can we do? Gold-plated processes…only one strongly interacting particle in final or initial state. Avoid strong decays. Spatial p small compared to [huh]?
K-> pi pi, K0 to gamma gamma 2012 gave first F_(pi)(g)(g) results.
Analytic constraints allow us to extend successful models to other processes.
Disconnected diagrams matter for some reason? This I should ask about…

3. 2-5 years from now?
Discretization effects need to be taken care of, such as finite volume. New Blue Gene Q at KEK, more reason to love Japan right now.
1% precision => need to break isospin, need to use QED.
Biggest problems? Statistical errors D:
q~ exp[- m_pi |x-y|]  stats only improve as 1/sqrt N :/
Long distance correlations grow with decreased pion masses…hence the above question’s answer about why we don’t use lower pion masses in calculation.

Random undergrad session? Random undergrad session.
E. Gross worked on a spark chamber. I think I’m going to email him. Sadly, it was tiny 😦 the good new is that it took about a year for one dude and a mentor. They do NOT have a nice machine shop at Regis University…so we have an advantage at Tech. Primary reasn for building is outreach. 100 K sparks per day…this is good and bad since you can burn out your electronics :/

====books===
Griffith’s has a new book on revolutions in physics
Maggiore has a QFT book…may check that out this summer, it looked stupid thorough 😛

11:57 MICHAEL PESKIN, WOOOOOO -Higgs talk.
What is mass? Take complex scalat field, mass term is coeficient on |phi|^2 term. This has the effect of producing an energy gap of 2mc^2 in the space of allowed energies.

Energy splitting is not allowed with symmetry. Breaking the symmetries give mass. L&R  handedness for e- no problem when particles travel at speed of light…but you can boost. So you can mess things up. Parity violations occur.
e-_R is a single, but (nu E)_L form a doublet, SU(2) \times U(1)
Weak interaction produces massive vector bosons…but the expressions [almost indistinguishable from Maxwell’s eq] for the fields do not allow a mass. These masses are produced by introducing and extra field.
Similar field in Landau super conductor.
We break the symmetry and collapse to U(1). The effective lagrangian generates the mixing we need ($\lambda \bar{e}_R \phi^\dagger (\nu e)_L + h.c. $ [I just discovered, I think, that wordpress does latex…we’ll see].
BR for most useable channels are super small! $h \to ZZ^* \to 4 l$ is .16%, $h \to 2 \gamma$ is .23 \% $
Gauge structure vs. vacuum structure. Why top so heavy?
CP violation L, B violation vacuum energy?

Lots of questions need addressing on the vacuum side of things.

Cosmic Ray Talk [nature’s super colliders] Fermi Mechanism? Shocks give great energy boosts.
Diffusive Shock Acceleration is important.
Strong Shock -> R=4=>E^-2
Hadron acceleration harder to see, pion to gamma gamma we CAN see.
100x normal galactic magnetic fields for Tycho.
Fields are amplified by CR-induced streamings. Cosmic rays acceleration and push waves, v up gives B up.
Galactic diffusion ~ GeV but are shocks efficient? Self-generated shocks give 10^6 GeV.

Collisionless shock- collective E&M effects.

Meet Wald, got an awesome picture with him 😀 …his talk was half incomprehensible though…BH Thermodynamics in d-dimensions?

LGQ with Pullin was like 35% understandable…but I also walked in late.

New Collider in Japan looks cool, Kaoru Yokoya? 1984 ish studies into the ILC began as a Japanese initiative. 2004 ILC becomes a thing when Japan realizes they want it…but don’t want to do it alone.
500 GeV at least for e+e- to Higgs. 31 k, ~8 billion dollars and 9 years.

LOTS OF CODE AND STUFF WOOOOOOOOOOOOOOOOOOOOOOOOOOO
Finished almost all of my presentation that night…almost.

 

European Coffee Shops are sketch …

 

4/10/13

Slept. A lot. Woke up, went to Soft Matter. Cool stuff on how to study the elastic responses of a material through an oscillatory strain and such. Convolutions and Fourier Transformations, woo!

Cosmic coffee was alright, went pretty smoothly.

Class Mech II was alright, kind of low level?

Agency meeting = pizza, woo~

Research progress? Yes! Plots made with titles and everything. Onto the presentation…

Decided to look for current limits on the process I calculated…turns out my mentor’s work is cited several times in the latest publication of said limits.

Schedule for Thursday:

10-12: presentation work, woo~

12:00-1:00 Study GR from Carroll

1:00-1:30 Study Plasma Physics

1:30-3:00 GR
3:00-4:30 Plasma Physics

Cool link is cool?
http://en.wikipedia.org/wiki/Soccket

Sad link:

http://inspirehep.net/author/S.Hossenfelder.1/
look at the graph vs. time. She has two kids…I bet the years with virtually no papers are the years she had them :/ Sucks…

4/9/2013

Monday was a mess…mostly spent with quantum homework.

Todo List:

Classes;

GR – catch up, class was great today. Woooooooooo gravitational waves

Soft Matter – Review Glasses
Plasma – stay awake ;-; [legitimate challenge today…didn’t sleep] – Professor wasn’t here, grad student lectured? It was great!

QM II – Wait? Review?

E&M – Study for Final, get Plasma notes [irony?]

Stat Mech – Read Chapter 7, take notes, do problems from Problem Book?

Seminar – try not to sleep

Research: See previous posts for Astro

DRAFT OF CONFERENCE TALK – tonight, please.

Things to remember:

http://cds.cern.ch/events/events.py/index?categ=School&date=future

http://www.conference-service.com/conferences/physics-education.html

http://www.phys.psu.edu/~cteq/schools/summer13/

http://www.aps.org/units/fgsa/activities/travelgrants.cfm

Did some sleeping…a bit at least, and did some research on summer schools. I’ll call it 30% productive.

WOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO I can calculate gu->tγ  🙂 Now to run it over renormalization scales and masses. Completely forgot to mention going to MUSE on Saturday…oops? Was kind of cool.

4/7/2013

E&M – study for exam ;-; tomorrow.

QM – HW due Tuesday, do some more of this.

Soft Matter – Re-read paper tomorrow, study glasses, and study Witten…prepare presentation ;-;

Gravity – Catch up in general, sadface.

Plasma Physics – Attend class and try not to sleep [look into old exams]

Cloudy goals [keep in mind for Friday]:maybe take out cosmic rays?

abundances orion usually includes grains, but can’t change dust to gas easily.
tell no grains, then add them back
table 7.2 in Hazy part 1 has abundance data.
ISM grains…?
abundances ISM no grains
grains ISM graphite 9.0hden? maybe do this dynamically
for a given density and temperature call cloudy, integrate up get rosseland mean opacity.
check to see if removing iterate to converge changes timing.
Rosseland mean opacity v. temperature for different dust to gas ratios
^ start with this
1, 5, 10 for dust to gas ratio.
run ISM and not ISM for integrated.
Remove iterate to convergence and check timing.
need lots of opacity files

…mess….

2-2:30 – E&M

4-5 E&M

6:30-7 E&M

7:15-7:30 E&M

asjfhalsf stuff later that evening

Django was alright?

4/4/2013

E&M – study for exam

Stat Mech – Quiz Friday.

QM – HW due Tuesday, do some more of this.
Soft Matter – Re-read paper tomorrow, study glasses, and study Witten…prepare presentation ;-;

Gravity – Catch up in general sadface.

Senior Seminar – Prep for talk.
Plasma Physics – Attend class and try not to sleep [look into old exams]

DO: Plan every god-darn day of April through the end of the conference.

note to self, this: http://www.youtube.com/watch?NR=1&feature=endscreen&v=EKWGGDXe5MA

This is wonderful^

For Senior Seminar:

http://en.wikipedia.org/wiki/Dark_matter#History_of_the_search_for_its_composition

and the HPS proposal:

https://www.jlab.org/exp_prog/PACpage/PAC37/proposals/Proposals/New%20Proposals/PR-11-006.pdf

Plan for the day:

Scoreboard for the day?
Cloudy goals [keep in mind for Friday]:maybe take out cosmic rays?
abundances orion usually includes grains, but can’t change dust to gas easily.
tell no grains, then add them back
table 7.2 in Hazy part 1 has abundance data.
ISM grains…?
abundances ISM no grains
grains ISM graphite 9.0hden? maybe do this dynamically
for a given density and temperature call cloudy, integrate up get rosseland mean opacity.
check to see if removing iterate to converge changes timing.
Rosseland mean opacity v. temperature for different dust to gas ratios
^ start with this
1, 5, 10 for dust to gas ratio.
run ISM and not ISM for integrated.
Remove iterate to convergence and check timing.
need lots of opacity files

…mess….

Predrag – “80% of GDP is quantum mechanics…”
;-; Panel Discussion so goooooood
…dinner and internet issues messed things up for several hours, woo?
from Monday’s talk:http://arxiv.org/abs/q-bio/0605036

Note to self: You are registered for lunch with Gingrey tomorrow!
Need to do: Schedule for Thursday, hahaha.
DRAFT:
9:30-10:00 Get upppp
10:00-10:30 Get ready for the day
11:00-12:00 Lunch with Gingrey!
12:00-12:15 Transition, probs to Howey
12:30-1:00 Stat Mech1 – done, notes on the text…went okay ish.
1:00-1:30 E&M1 – Done, notes on text some more…progress I think.
1:30-3:00 GR @.@ – super cool gravitational wave stuff today 😀
3:00-4:30 Plasma Physics – ehhh nope.

4:00-4:30 Stat Mech2 – done, was okay. Mostly finished up notes on the text.

4:30-5:00 E&M2 – done, that was unexciting…not sure it was my most productive.
5:00-5:30 Stat Mech3 – done, tried problems from the quals book…I don’t like them.

5:30-6:00 😦 over ran time and laze.
6:00-6:30 FCNC1 -really, really weird potential typo that didn’t change results? Function caled with huge numbers where small ones should’ve been .-.
6:30-7:00 E&M3 – some progress? I’m getting tired 😦 so it’s not going as well as it could…
7:00-7:30 Senior Seminar1 – Progresssss, but kinda slow?
7:30-8:00 QM1 – time ran over a bit and I felt kind of hungry :/ poo I guess…it wasn’t that important
8:00-8:30 Stat Mech4 – giving up a little at this point, I tried to skim over the big book of problems but a this point I’m just printing as many of the problems as I can and reading over them.

8:30-9:00 E&M4 – making study plan for weekend and reading. Went alright. I should really go over chapter 11 tomorrow…spent a lot of time on chapter 10.
9:00-9:30 FCNC2 -apparently the 10^10 GeV mass is just meant to give it something “very heavy” and it didn’t look like the calculation changed much for mass of top quark vs. cross section when I  ran it with a smaller number. So I guess I can ignore it. progress overall, I think. I’m close to getting the gamma one to work…but it’d be running on old pdfs ;-; need to update it.
9:30-10:00 Stat Mech4 -done ish. just done in general really…I think I’ll go home eat sleep etc. I can get to sleep 11:30 or I think?
10:00-10:30 Senior Seminar2
10:30-11:00 Stat Mech5
11:00-11:30 Senior Seminar3
11:30-12:00 Stat Mech6
SLEEP, I SURE HOPE.

Total time on things, Thursday – Friday:
Senior Seminar – 2.5 hours
Thur – 1.5 [c
Fri -1
Stat Mech – 4 hours
Thur 3 [ c
Fri 1
E&M – 3 hours
Thur 2 [ c
Fri – 1
FCNC – 3 hours
Thur 1 [ c
Fri – 2
QM HW – 1 hours
Thur-0.5 [ c
Fri-0.5

4/3/13

E&M – study for exam

Stat Mech – Quiz Friday.

QM – HW due Tuesday, do some more of this.
Soft Matter – Re-read paper tomorrow, study glasses, and study Witten…prepare presentation ;-;

Gravity – Catch up in general :( sadface.

Senior Seminar – Prep for talk.
Plasma Physics – Attend class and try not to sleep  [look into old exams]

DO: Plan every god-darn day of April through the end of the conference.

note to self, this: http://www.youtube.com/watch?NR=1&feature=endscreen&v=EKWGGDXe5MA

This is wonderful^

For Senior Seminar:

http://en.wikipedia.org/wiki/Dark_matter#History_of_the_search_for_its_composition

and the HPS proposal:

https://www.jlab.org/exp_prog/PACpage/PAC37/proposals/Proposals/New%20Proposals/PR-11-006.pdf

Plan for the day:

9:30-10:00 Soft Matter Presentation -was asleep
10:00-10:30 FCNC -was getting to school
11:00-12:00 E&M, attend class/review hw – mission accomplished, submit hw later this evening?
12:00-12:15 Get form signed – done.
12:30-1:00 Stat Mech – done
1:00-1:30 QM HW – done
1:30-2:00 FCNC  -done
2:00-2:30 Stat Mech -done
3:00-4:00 Cosmic Coffee – done
4:30-5:00 Senior Seminar – done
5:00-5:30 Stat Mech -done!
5:30-6:00 empty 😦 -done
6:00-7:00 Panel Discussion – done
7:00-7:30 Post-Panel? – done
7:30-8:00 Senior Seminar -oops
8:30-9:00 FCNC -oops
9:00-9:30 Stat Mech – oops
9:30-10:00 E&M -oooops
10:00-10:30 Stat Meeeech, problems in the text. Done.
10:30-11:00 E&M – problem 10.1 and 10.2…slow is progress? Done with this.
11:00-11:30 FCNC – got plots for gutZ NLO and have data for ratio vs. cross section in sm.
11:30-12:00 Stat Mech – making progress but getting a little tired of stat mech :((
12:00-12:30 ;-; pile up  running over => 16 minutes into it…taking a break for a bit then 12:30 startup.
12:30-1:00 E&M – progress >=P Yeaaaaaaaaaaah Make notes on keypoints later, organize problem by steps ><!
1:00-1:30 Senior Seminar – progress!!!!! lots of notes added, colors changed, slides split 😛
1:30-2:00 FCNC – whew. Plots? yeah. Got some. BOOM. Also, taking a slight break to stand and stuff, ya know? Since I can’t do anymore anyways…..
2:00-2:30 Stat Mech – that was a bit bleehhhh I’m starting to die/
2:30-3:00 Senior Seminar – ehhhhh I’m pretty much done with this.
Scoreboard for the day?

Total time on things, Weds – Friday:
Senior Seminar – 4 hours
Wed 1.5 [SUCCESS]
Thur – 1.5
Fri -1
Stat Mech – 7 hours
Wed 3 [SUCCESS]
Thur 3
Fri 1
E&M – 5 hours
Wed 2 [ SUCCESS]
Thur 2
Fri – 1
FCNC – 4.5 hours
Wed 1.5 [SUCCESS]
Thur 1
Fri – 2
QM HW – 2 hours
Wed-1 [ 3/4 done], failure…but close?
Thur-0.5
Fri-0.5

Cloudy goals [keep in mind for Friday]:maybe take out cosmic rays?
abundances orion usually includes grains, but can’t change dust to gas easily.
tell no grains, then add them back
table 7.2 in Hazy part 1 has abundance data.
ISM grains…?
abundances ISM no grains
grains ISM graphite 9.0hden? maybe do this dynamically
for a given density and temperature call cloudy, integrate up get rosseland mean opacity.
check to see if removing iterate to converge changes timing.
Rosseland mean opacity v. temperature for different dust to gas ratios
^ start with this
1, 5, 10 for dust to gas ratio.
run ISM and not ISM for integrated.
Remove iterate to convergence and check timing.
need lots of opacity files
…mess….
Predrag – “80% of GDP is quantum mechanics…”
;-; Panel Discussion so goooooood
…dinner and internet issues messed things up for several hours, woo?
Note to self: You are registered for lunch with Gingrey tomorrow!
Need to do: Schedule for Thursday, hahaha.
DRAFT:
9:30-10:00 
10:00-10:30
11:00-12:00 Lunch with Gingrey! /Stat Mech half hour?
12:00-12:15 Transition, probs to Howey
12:30-1:00 Stat Mech
1:00-1:30 E&M
1:30-3:00 GR @.@
3:00-4:30 Plasma Physics
4:30-5:00 E&M
5:00-5:30 Stat Mech
5:30-6:00 FCNC
6:00-7:00 E&M
7:00-7:30 Stat Mech
7:30-8:00 QM
8:30-9:00  E&M
9:00-9:30 FCNC
9:30-10:00  Stat Mech
10:00-10:30 E&M
10:30-11:00 Senior Seminar
11:00-11:30 Stat Mech
11:30-12:00 E&M
SLEEP, I SURE HOPE.

4/2/2013

Stat Mech – Quiz Friday… Start studying Wednesday at latest, attended/ing class today…not paying much attention.

QM – HW due Thursday, do more today ><
Soft Matter – Re-read paper tomorrow, study glasses, and study Witten

Gravity – Catch up in general :( sadface.

Senior Seminar – Prep for talk, ha…haha, oh fuck this is Friday. Oh fuck, oh fuck….
Plasma Physics – Attend class and try not to sleep ><’ that is all. [look into old exams, later]

DO: Plan every god-darn day of April through the end of the conference.

note to self, this: http://www.youtube.com/watch?NR=1&feature=endscreen&v=EKWGGDXe5MA

http://en.wikipedia.org/wiki/Dark_matter#History_of_the_search_for_its_composition

and review the HPS proposal:

https://www.jlab.org/exp_prog/PACpage/PAC37/proposals/Proposals/New%20Proposals/PR-11-006.pdf

Plan for the day:

10:45-11:45 Get temperature thing to work =.= …okay, that was fail. It’s printing some stuff ish?
12-12:30 meeting
12:30-1:00 GR -looked at basics of charged black holes.
1:30-3:00 GR, spent most of the time paying attention! Woo BH thermodynamics. HW soon ish ;-;
3:00-4:30 Plasma…let’s see if I can stay awake! Also, planning.
4:30-5:00 FCNC, work -did that, still not sure how I’m going to run things in batch…
5:00-5:30 Senior Seminar, Notes on the proposal , next up is notes on the history of dark matter.
5:30-6:00 Stat Mech, reading. Made some serious progress in reading, all things considered!
6:00-6:30 QM HW, searching and workin’ >< some progress? Founda  good site :S
6:30-7:00 FCNC, work
7:00-7:30 Soft Matter Presentation, reading and notes – didn’t do 😦
7:30-8:30 Greeeyyy Haaaaaat [1/2 senior seminar] Look at conference schedule and summer stuff?
8:30-9:00 FCNC
9:00-9:30 FCNC
9:30-10:00 Stat Mech, problems in the text [attempt them]
10:00-10:30 E&M Working through chapter
11:00-11:30 QM HW, work work work
11:30-12:00 Stat Meeeech, problems in the text? Reading?
12:00-12:30 E&M
Total time on things, Tuesday – Friday:
QM HW – 3 hours

Tues-1 done
Wed-1
Thur-0.5
Fri-0.5
Senior Seminar – 5 hours
Tues 1 – done
Wed 1.5
Thur – 1.5
Fri -1
Stat Mech – 12 hours
E&M – 7 hours
Tues 1.5
Wed 2
Thur 2
Fri – 1.5
FCNC – 9 hours
Tues 3.5 done.
Wed 2
Thur 1.5
Fri – 2
I haaaaaaaaaaaaaate BaaaaaaaashI completely messed up my work time line by spending exorbitant amounts of time coding 😦 so sadface…

os.system is really, really cool in Python though.

Cloudy goals:

maybe take out cosmic rays?
abundances orion usually includes grains, but can’t change dust to gas easily.
tell no grains, then add them back
table 7.2 in Hazy part 1 has abundance data.
ISM grains…?
abundances ISM no grains
grains ISM graphite 9.0

hden? maybe do this dynamically
for a given density and temperature call cloudy, integrate up get rosseland mean opacity.

check to see if removing iterate to converge changes timing.

Rosseland mean opacity v. temperature for different dust to gas ratios
^ start with this
1, 5, 10 for dust to gas ratio.

run ISM and not ISM for integrated.

Remove iterate to convergence and check timing.
need lots of opacity files…

mess….