lasers - 2025 ACF Fall - Buzzpoints App

Question

The rate of one process in these devices equals mass density times particle number times the Einstein B coefficient. For 10 points each:

[10e] Name these devices that use pumping to achieve population inversion in a gain medium. These devices create a coherent, collimated, monochromatic beam of light using stimulated emission.

ANSWER: lasers

[10h] The Gaussian intensity profile of lasers allows them to be used in these devices. These devices use local gradients in the electric field to trap and manipulate individual atoms.

ANSWER: optical tweezers

[10m] Cornell and Wieman used laser cooling to create this state. This state is made of particles with integer spin, almost all of which occupy the ground state.

ANSWER: Bose–Einstein condensates [or BECs]

Back to bonuses

Summary


Northern California	Main	Y	4	20.00	100%	75%	25%
Southern California	Main	Y	7	21.43	100%	86%	29%
Eastern Canada (1)	Main	Y	4	17.50	100%	50%	25%
Eastern Canada (2)	Main	Y	9	18.89	100%	67%	22%
Florida	Main	Y	4	10.00	100%	0%	0%
Great Lakes	Main	Y	11	14.55	100%	36%	9%
Lower Mid-Atlantic	Main	Y	9	16.67	89%	56%	22%
Upper Mid-Atlantic	Main	Y	12	15.00	83%	58%	8%
Midwest	Main	Y	9	14.44	100%	33%	11%
North	Main	Y	4	17.50	100%	50%	25%
Northeast	Main	Y	12	16.67	100%	67%	0%
Pacific	Main	Y	8	13.75	100%	38%	0%
South Central	Main	Y	6	15.00	100%	33%	17%
Southeast	Main	Y	12	14.17	83%	50%	8%
UK (North)	UK	Y	5	14.00	100%	40%	0%
UK (South)	UK	Y	7	15.71	100%	57%	0%
Upstate NY	Main	Y	5	18.00	100%	60%	20%

Data


Berkeley Boss Bandit	Berkeley Archer Queen	10	0	10	20
Berkeley Little Prince	UCSC	10	0	10	20
Berkeley Mighty Miner	Stanford A	10	0	0	10
Stanford B	Berkeley Skeleton King	10	10	10	30
UCLA E	UCLA A	10	0	10	20
UCLA B	UC Irvine	10	10	10	30
Claremont B	UCLA D	10	10	10	30
Claremont C	UCLA F	10	0	10	20
UCLA C	UCSD A	10	0	10	20
UCSD B	USC A	10	0	10	20
UC Santa Barbara	USC B	10	0	0	10
Ottawa B	Ottawa C	10	10	0	20
McMaster A	Brock A	10	0	0	10
McMaster C	Guelph A	10	0	10	20
Queen's A	McMaster B	10	10	10	30
Toronto A	Toronto D	10	0	10	20
Toronto B	Toronto G	10	0	0	10
Toronto E	Toronto F	10	0	10	20
Waterloo A	Toronto I	10	10	10	30
Toronto H	Waterloo B	10	0	0	10
Toronto C	Waterloo C	10	0	10	20
Carleton B	McGill A	10	0	10	20
McGill C	Carleton A	10	0	0	10
Ottawa D	McGill E	10	0	10	20
Florida Tech B	Florida B	10	0	0	10
Ohio State D	CWRU A	10	0	0	10
CWRU C	Michigan A	10	0	10	20
WVU A	Kentucky	10	0	0	10
Louisville D	Michigan D	10	0	10	20
Michigan B	Louisville B	10	0	10	20
Michigan C	CWRU B	10	0	0	10
Ohio State B	Michigan State C	10	0	0	10
Michigan State B	Michigan State D	10	0	0	10
CWRU D	Ohio State A	10	0	0	10
Louisville C	Pittsburgh	10	10	10	30
WVU B	Michigan State A	10	0	0	10
JMU B	Duke A	0	0	0	0
UNC B	Liberty A	10	0	0	10
NCSU A	Liberty B	10	10	10	30
JMU A	NCSU B	10	0	0	10
UNC C	Tusculum A	10	10	10	30
UNC D	Virginia Tech C	10	0	10	20
Virginia Tech B	VCU A	10	0	10	20
Virginia A	William & Mary B	10	0	10	20
William & Mary C	Virginia Tech A	10	0	0	10
South Florida A	ERAU Daytona A	10	0	0	10
Florida State A	UCF A	10	0	0	10
Columbia A	Lehigh A	10	0	10	20
George Mason A	Columbia B	10	0	10	20
Lehigh B	Maryland B	10	0	0	10
Maryland C	Rutgers D	10	0	0	10
NYU B	NYU A	10	0	10	20
Rutgers B	Penn	10	0	0	10
George Mason C	Princeton	10	0	0	10
Johns Hopkins	Rowan	10	0	10	20
Rutgers C	George Mason B	0	0	10	10
Stony Brook	Maryland A	10	0	10	20
Vassar A	NYU C	0	0	0	0
Rutgers A	Vassar B	10	10	10	30
Rose-Hulman A	Illinois Blue	10	0	0	10
Illinois Orange	Chicago B	10	10	10	30
Iowa A	Purdue A	10	0	10	20
Illinois Canada	Iowa B	10	0	0	10
WashU Grolars	Purdue B	10	0	0	10
Purdue C	Indiana B	10	0	10	20
Illinois Champaign	Purdue D	10	0	0	10
WashU Grizzlers	Illinois Urbana	10	0	0	10
William Woods University A	Indiana A	10	0	0	10
Michigan Tech	Minnesota	10	0	0	10
Iowa State	St. Thomas	10	0	10	20
Macalester	Wisconsin B	10	0	0	10
Wisconsin A	Wisconsin C	10	10	10	30
Vermont A	Amherst A	10	0	10	20
Boston College A	Williams A	10	0	0	10
Brandeis Mozart	Dartmouth A	10	0	0	10
Brown A	Brandeis Bach	10	0	10	20
Amherst B	Brown B	10	0	10	20
Boston College B	Dartmouth C	10	0	10	20
MIT A	Brandeis Beethoven	10	0	10	20
Boston University B	Tufts A	10	0	10	20
Dartmouth B	Tufts C	10	0	10	20
Tufts B	Harvard	10	0	0	10
Williams B	MIT B	10	0	10	20
Boston University A	Williams C	10	0	0	10
Alberta A	Washington Coho	10	0	10	20
Washington Steelhead	Arizona State B	10	0	10	20
Washington Chum	Boise State	10	0	0	10
Washington Chinook	British Columbia A	10	0	0	10
Washington Atlantic	Texas	10	0	0	10
Washington Masu	British Columbia C	10	0	0	10
Washington Pink	Alberta B	10	0	10	20
Washington Sockeye	Washington State	10	0	0	10
Central Oklahoma A	Nebraska C	10	0	10	20
Harding	Kansas State B	10	0	0	10
Murray State College A	Kansas State A	10	0	0	10
Nebraska B	Murray State College B	10	0	0	10
Nebraska A	Tulsa B	10	10	10	30
Central Oklahoma B	Tulsa A	10	0	0	10
Auburn A	Auburn C	10	0	0	10
Clemson A	Clemson C	10	0	10	20
Emory A	Auburn B	10	10	10	30
Georgia A	Georgia Tech B	0	0	10	10
Georgia Tech C	Chipola College	10	0	10	20
South Carolina A	Georgia Tech D	10	0	10	20
Georgia Tech E	Georgia Tech A	10	0	0	10
Tennessee A	Georgia Tech F	10	0	10	20
Sewanne	Mississippi State A	0	0	0	0
Montevallo	Vanderbilt A	10	0	0	10
Tennessee Tech	Vanderbilt B	10	0	0	10
Vanderbilt C	Alabama A	10	0	0	10
Edinburgh A	Durham D	10	0	0	10
Edinburgh B	Durham C	10	0	0	10
Edinburgh C	York	10	0	0	10
Durham A	Sheffield A	10	0	10	20
Sheffield B	Edinburgh D	10	0	10	20
Cambridge A	Imperial B	10	0	0	10
Oxford	Cambridge C	10	0	0	10
Imperial C	Cambridge D	10	0	10	20
Cambridge E	Birmingham	10	0	10	20
Warwick	Cardiff	10	0	10	20
LSE	Bristol	10	0	0	10
Imperial D	Southampton	10	0	10	20
Binghamton B	RIT B	10	0	10	20
Binghamton A	Binghamton C	10	0	10	20
Cornell B	Cornell D	10	10	0	20
Cornell A	RIT A	10	0	0	10
Rochester	ESF	10	0	10	20
Florida A	Florida Tech A	10	0	0	10