Embedded Systems Conference
Breaking News
Comments
DCH0
User Rank
Author
re: MIT advances quantum magnetism
DCH0   12/26/2012 4:19:49 PM
NO RATINGS
from Wikipedia: "Dr. George Frederick Herbert Smith (1872–1953), was a British mineralogist who worked for the British Museum of Natural History.[1] He discovered the mineral paratacamite in 1906. He also developed the first efficient jeweller's refractometer."

MeirG
User Rank
Author
re: MIT advances quantum magnetism
MeirG   12/27/2012 6:59:07 PM
NO RATINGS
Dear Sylvie, "Quantum communication, based on quantum entanglement, which does not rely on information transmission, would be a near instantaneous way of propagating information. The change in the state of one particle would simply change the state of another particle." Please check your physics again...

Bert22306
User Rank
Author
re: MIT advances quantum magnetism
Bert22306   12/30/2012 7:58:44 PM
NO RATINGS
Quantum communications means communications which are based on quantum mechanics. Instead of thinking in terms of voltage and current, for instance, one approaches comms which depend on the emission of single photons, from an atom at the source to an atom at a destination. One photon through a cavity, along with that photon's polarity, changes the state of one atom at the opposite end of that cavity. That single atom change of state can represent a zero or one bit value of information transfer. Think of the single photon exciting an electron at the destination to a higher energy level, with + or - spin. If the atom at the end of the cavity can be retained in a given state, the scheme can also be used for data storage. Point being, though, that photons must still trevel through the cavity (transmission channel). Which says that info transfer is still limited to the speed of light.

Josato
User Rank
Author
re: MIT advances quantum magnetism
Josato   1/4/2013 2:06:52 PM
NO RATINGS
Quantum entanglement transmits information instantaneously, so faster than the speed of light.

Bert22306
User Rank
Author
re: MIT advances quantum magnetism
Bert22306   12/30/2012 8:18:52 PM
NO RATINGS
But this article was not about quantum communications in general, but rather about the discovery of a third type of magnetism, the quantum spin liquid (actually a crystal substance, but the magnetic particles in it behave like a liquid). But the really big deal is that these magnetic particles can take on non-discrete quantum states. Fractional states, in other words, which is a really foreign concept in quantum mechanics so far. http://www.sciencedaily.com/releases/2012/12/121220143745.htm



Radio
NEXT UPCOMING BROADCAST

As we unveil EE Times’ 2015 Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. Panelists Dan Armbrust (investment firm Silicon Catalyst), Andrew Kau (venture capital firm Walden International), and Stan Boland (successful serial entrepreneur, former CEO of Neul, Icera) join in the live debate.
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...