electrons - 2025 ACF Fall

Tossup

If the transfer integral of these particles is small, the repulsion between them can lead to the Mott transition. (10[1])If these particles are “nearly free” (10[1])but weakly interact with a periodic (10[1])potential, (10[1])Bloch’s theorem (10[3])can be used (10[1])to compute their band structure. (10[2])Superconductivity (10[3])is (10[1])caused (-5[1])by (10[2])bound (10[1])pairs (10[4])of (10[1])these (10[2])particles (10[15])theorized (10[2])by (10[3])Leon (10[1])Cooper. (10[9])Places (10[1]-5[1])in a lattice (10[1])where these particles (10[1])don’t exist (10[1])are (-5[1])called (10[1])holes. (10[25])If (10[3])a photon’s (10[1])energy (10[1])exceeds a material’s (10[2])work function, (10[2])it (10[1])can (10[1])eject (10[3])one of these (10[3])particles (10[4])in an effect (10[3])whose (10[1])description won Albert Einstein the Nobel Prize. (10[2]-5[3])For 10 points, name these negatively-charged (10[2])particles (10[3])whose (10[1])orbitals surround the (10[1])nuclei of atoms. ■END■ (10[4])

ANSWER: electrons [prompt on fermions]

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Buzzes

Player	Team	Opponent	Position	Value
Beckett Pursey	Purdue B	WashU Grolars	18	10
Wyatt Johnson	CWRU B	Michigan C	24	10
Anne Fjeld	Alberta A	Washington Coho	30	10
Danny Han	Stanford B	Berkeley Skeleton King	31	10
Liam Rojas	Virginia A	William & Mary B	33	10
Henry Ding	Princeton	George Mason C	33	10
Nikhil Nair	Boston University B	Tufts A	33	10
Michael Shipman	Cambridge D	Imperial C	36	10
Taman Truong	USC B	UC Santa Barbara	41	10
Nate Brown	CWRU C	Michigan A	41	10
Platon Gorokhov	Toronto E	Toronto F	42	10
Nicholas Ryan	Lehigh B	Maryland B	42	10
Nathan Whittington	Tennessee A	Georgia Tech F	42	10
Advai Srinivasan	UC Irvine	UCLA B	43	10
Joseph Strom	Louisville B	Michigan B	44	-5
Nick Machin	UCLA A	UCLA E	45	10
Wesley Stine	Clemson A	Clemson C	45	10
Brendan Bridle	Queen's A	McMaster B	46	10
Saju Ramraj	Toronto I	Waterloo A	47	10
Dustin Sanders	Chicago B	Illinois Orange	47	10
Daniel Lu	Washington Pink	Alberta B	47	10
Andreas Ktori	Durham A	Sheffield A	47	10
Matthew Westley	Purdue A	Iowa A	48	10
Nathan Woolery	Louisville C	Pittsburgh	49	10
Jeremy Scurlock	Chipola College	Georgia Tech C	49	10
Aaryan Sumesh	Berkeley Archer Queen	Berkeley Boss Bandit	50	10
Rohan Soni	UCLA F	Claremont C	50	10
Ishan Pachauri	UCLA C	UCSD A	50	10
Kenneth Moeller	ERAU Daytona A	South Florida A	50	10
Nishad Joshi	Kentucky	WVU A	50	10
Jacob Goodson	Ohio State A	CWRU D	50	10
Kevin Cronk	Virginia Tech C	UNC D	50	10
Leonard Castine	Penn	Rutgers B	50	10
Jiping Fang	Illinois Blue	Rose-Hulman A	50	10
Alan Cai	Amherst A	Vermont A	50	10
Surya Dinesh	MIT A	Brandeis Beethoven	50	10
Vishnu Sharma	Texas	Washington Atlantic	50	10
Antara Bhattacharya	Cambridge A	Imperial B	50	10
Ollie Glin-Conway	Imperial D	Southampton	50	10
Peter Smith	Binghamton A	Binghamton C	50	10
Ethan Ririe	UCSD B	USC A	51	10
Braydon Morefield	George Mason B	Rutgers C	51	10
Fern Fang	VCU A	Virginia Tech B	52	10
Michael Ai	Williams A	Boston College A	52	10
Stephen Donoghue	Sheffield B	Edinburgh D	52	10
George Matsumura	Washington Chum	Boise State	53	10
Jackson Crickard	Claremont B	UCLA D	54	10
Lucas Hall	Waterloo C	Toronto C	54	10
Eric Morshed	Johns Hopkins	Rowan	54	10
Will Huang	Wisconsin A	Wisconsin C	54	10
Daniel Chen	Emory A	Auburn B	54	10
Rob Morris	Durham D	Edinburgh A	54	10
Nitinkisor Rajesh Kumar	Edinburgh B	Durham C	54	10
Eric Zhu	Cornell D	Cornell B	54	10
Jack Glenn	ESF	Rochester	54	10
Joanna Xiao	Georgia Tech B	Georgia A	55	10
Ahmed Azhari	Cambridge E	Birmingham	55	-5
Alex Wong	Rutgers D	Maryland C	58	10
Xavier Bornhorst	Maryland A	Stony Brook	61	10
Alex Matchinski	Michigan Tech	Minnesota	63	10
Brayden Zhang	Vanderbilt B	Tennessee Tech	64	-5
Jason Thieu	Michigan State A	WVU B	65	10
David Yuan	Berkeley Little Prince	UCSC	66	10
Surya Donath	Stanford A	Berkeley Mighty Miner	66	10
Charlie Ruff	McGill A	Carleton B	66	10
Drake Smith	Carleton A	McGill C	66	10
Chen Nagahawatte	Ottawa B	Ottawa C	66	10
James Xiao	Toronto A	Toronto D	66	10
Victor Xu	Toronto B	Toronto G	66	10
Nina Chen	Waterloo B	Toronto H	66	10
Dominic Heffron	Florida Tech A	Florida A	66	10
Daniel Luebs	Michigan State B	Michigan State D	66	10
Vedang Singhal	UNC C	Tusculum A	66	10
Zachary Bornstein	Virginia Tech A	William & Mary C	66	10
Cooper Morris	Columbia B	George Mason A	66	10
Zaid Asif	NYU A	NYU B	66	10
Jason Lee	Rutgers A	Vassar B	66	10
Anurag Shah	Indiana A	William Woods University A	66	10
Ben Simmons	Macalester	Wisconsin B	66	10
Rafael Gómez	Amherst B	Brown B	66	10
Ayaan Jajodia	Dartmouth B	Tufts C	66	10
Kushagra Bahuguna	Washington Chinook	British Columbia A	66	10
Matthew Bray	Auburn C	Auburn A	66	10
Caleb Slusher	South Carolina A	Georgia Tech D	66	10
Darren Kellis	Vanderbilt A	Montevallo	66	10
Isaiah Schmid	Binghamton B	RIT B	66	10
Aaron Wang	Cornell A	RIT A	66	10
Seth Allen	McMaster A	Brock A	67	10
Joshua Lam	Ohio State B	Michigan State C	67	10
Drew Wetterlind	Iowa State	St. Thomas	67	10
Misty Chen	Purdue C	Indiana B	69	10
Jesse Mindel	NCSU A	Liberty B	70	10
David Ropp	Duke A	JMU B	73	10
Suyog Vibhuti	Washington Steelhead	Arizona State B	73	10
Eames Weeks	Brown A	Brandeis Bach	75	10
Jolie Yeh	Warwick	Cardiff	75	10
Benjamin Turner	York	Edinburgh C	76	10
Bharath Ram	Georgia Tech A	Georgia Tech E	77	10
Adithya Parat	McMaster C	Guelph A	78	10
Akif Ismail	Williams C	Boston University A	78	10
Evan Roberts	Vanderbilt C	Alabama A	78	10
Enina Edosomwan	CWRU A	Ohio State D	81	10
Jack Rabaut	Michigan D	Louisville D	81	10
Kaushik Jayaprabha	Dartmouth C	Boston College B	81	10
Gavin Chen	Vassar A	NYU C	82	10
Brian Qian	Illinois Canada	Iowa B	82	10
Reid Eichberg	Tufts B	Harvard	82	10
Kyle Hart	MIT B	Williams B	82	10
Corey Pope	Florida State A	UCF A	85	10
Joshua Iyo	UNC B	Liberty A	85	10
Anirudh Terdal	LSE	Bristol	85	10
Lauren Edgar	Lehigh A	Columbia A	86	10
John Rootham	Ottawa D	McGill E	93	10
Matthew Andersen	Florida B	Florida Tech B	93	10
Theodor Martin	WashU Grizzlers	Illinois Urbana	93	-5
James Haddix	Washington State	Washington Sockeye	93	-5
Veer Vanmali	Mississippi State A	Sewanne	93	-5
William Henley	Illinois Champaign	Purdue D	99	10
Advaith Jagannath	Cambridge C	Oxford	99	10
Kevin Nolan	NCSU B	JMU A	100	10
Samuel Gao	British Columbia C	Washington Masu	100	10
Isabel Dent	Sewanne	Mississippi State A	100	10
Elliott Gomes	Dartmouth A	Brandeis Mozart	101	10
Ba Loc Dinh	Illinois Urbana	WashU Grizzlers	104	10
Anna Liao	Michigan B	Louisville B	108	10
Simarya Ahuja	Washington Sockeye	Washington State	108	10
Daniel Slater	Tennessee Tech	Vanderbilt B	108	10
James Mogg	Birmingham	Cambridge E	108	10

Summary

Tournament	Edition	TUH	Conv. %	Neg %	Average Buzz
UK (North)	UK	5	100%	0%	56.60
UK (South)	UK	7	100%	14%	71.86
Northern California	US	4	100%	0%	53.25
Southern California	US	7	100%	0%	47.71
Eastern Canada (1)	US	4	100%	0%	72.75
Eastern Canada (2)	US	9	100%	0%	59.11
Florida	US	4	100%	0%	73.50
Great Lakes	US	11	100%	9%	62.00
Lower Mid-Atlantic	US	9	100%	0%	66.11
Upper Mid-Atlantic	US	12	100%	0%	59.58
Midwest	US	9	100%	11%	64.78
North	US	4	100%	0%	62.50
Northeast	US	12	100%	0%	68.00
Pacific	US	8	100%	13%	65.88
Southeast	US	12	100%	17%	67.17
Upstate NY	US	5	100%	0%	58.00