Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE

Can we ever achieve absolute cold? Try CuriosityStream today: http://curiositystream.com/spacetime

You can further support us on Patreon at https://www.patreon.com/pbsspacetime
Get your own Space Time t­shirt at http://bit.ly/1QlzoBi
Tweet at us! @pbsspacetime
Facebook: facebook.com/pbsspacetime
Email us! pbsspacetime [at] gmail [dot] com
Comment on Reddit: http://www.reddit.com/r/pbsspacetime

Help translate our videos!
https://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7g

Previous Episode:
When Quasars Collide STJC | Space Time
https://www.youtube.com/watch?v=gtZ7OVoI2nc

Resources:
Absolute Zero:
https://en.wikipedia.org/wiki/Absolute_zero

Zero-Point Energy:
https://en.wikipedia.org/wiki/Zero-point_energy

Bose-Einstein Condensate:
https://en.wikipedia.org/wiki/....Bose-Einstein_conden

Alfred Leitner's Superfluid Liquid Helium:
http://alfredleitner.com/superfluid.html

Links to Comments Response:

Rcoates89
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22lcfrgpz2sg5ixd04t1aokgcrarmubr2l25rvpe2erbk0h00410

Joseph Gamble
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z23xwxyhhnaiupzpm04t1aokgrzsld44qfcv4gwseddzbk0h00410

Dillan Burris
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22vflpxcoaajd0f3acdp435lhovrxjuxvfyg4vdjsxw03c010c

Rubbergnome
https://www.youtube.com/watch?v=gtZ7OVoI2nc&lc=z22phdvhwsyehtjxe04t1aokg1ewo1qi3ouyue3ocjgnbk0h00410

Many experimental physicists have spent their careers trying to cool things to absolute zero. This state of absolute cold is the zero-point on the Kelvin temperature scale, corresponding to -273.15 Celsius. Using lasers and magnetic fields, we’ve now managed to cool certain substances to less than a billionth of a Kelvin. Doing so has revealed some bizarre quantum states of matter. But quantum mechanics may also prevent us from ever reaching absolute zero. Understanding the limit to cold will lead us to an understanding of the nature of the quantum vacuum itself.

Written and Hosted by Matt O'Dowd
Produced by Rusty Ward
Graphics by Kurt Ross
Assistant Editing and Sound Design by Mike Petrow
Made by Kornhaber Brown (www.kornhaberbrown.com)

Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:

Big Bang
BITISM
CoolAsCats
David Nicklas
Richard Senegor

Quasar
Tambe Barsbay
Mayank M. Mehrota
Mars Yentur
Mark Rosenthal
Dean Fuqua
Y2
Justin Lloyd

Hypernova
Edmund Fokschaner
Max Levine
Matthew O’Connor
Eugene Lawson
Barry Hatfield
Martha Hunt
Joseph Salomone
Chuck Zegar
Craig Peterson
Jordan Young
Ratfeast
John Hofmann

Thanks to our Patreon Gamma Ray Burst Supporters:
Denys Ivanov
Nick Virtue
Alexey Eromenko
Nicholas Rose
Scott Gossett
Mark Dykstra
Peter Durocher
Michael Kers
Chris Hicks
Mark Vasile
Patrick Murray
Sultan Alkhulaifi
Alex Seto
Michal-Peanut Karmi
Erik Stein
Daniel Lyons
Kevin Warne
JJ Bagnell
J Rejc
Amy Jie
Avi Goldfinger
John Pettit
Shannan Catalano
Florian Stinglmayr
Yubo Du
Benoit Pagé-Guitard
Nathan Leniz
Jessica Fraley
Loro Lukic
Brandon Labonte
David Crane
Greg Weiss