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Technology of the Future is Here!
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DEFINITIONSTEPS INVOLVED
CLASSICAL TELEPORTATIONHEISENBERG UNCERTANITY
PRINCIPLEQUANTUM TELEPORTATIONENTANGLEMENTRECENT DEVELOPMENTFUTURE PROSPECTS
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Teleportation involvesdematerializing an object at onepoint, and sending the details of thatobject's precise atomic configurationto another location, where it will bereconstructed.
What this means is that time andspace could be eliminated fromtravel -- we could be transported to
any location instantly, without
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Step 1= Making an exact copy of thematerial make up of the object being
transported.Step 2= Transporting this copy to a
different location.Step 3= Destroying of the original
object.
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Teleportation whats the problem?Tele
portation whats the problem?
Problem: Matter cannot be reversiblyconverted into light!
Question: If matter not teleported, then
what is being transmitted?
Answer: information - is what should be transmitted
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Classical teleportation taking faxmachine as example
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The more precisely the position is determined,the less precisely the momentum is known in this instaand vice versa.
--Heisenberg 1927Blegdamsvej 17, Copenhagen
Heisenberg in 1927.
Bohrscomplementarity
principlePerfect
measurementof both positionand momentum
is impossible
2
1 px
iPX=
],[
Noncommuting operators:
( )2
122 === pxxVar
Minimal symmetricUncertainty:
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One scan out part of informationfrom object A (the original).
Two objects B&C are prepared andbrought in contact (i.e., entangled)and then separated.
At the sending station the object B isscanned with the original object A.
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While causing the remaining,unscanned,part of the information in
A to pass, via EPR entanglement,into another object C.
This scanned information is sent tothe receiving station.
Object A itself not in its original
state.
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PHOTONTELEPORTATION
The only thing teleportedis the photonspolarization state ormore generally, its
quantum state, not thephoton itself.
Entangle photon A with
photon X, photon X losesall memory, its originalstate.
As a member of anentangled pair, it has no
individual polarization
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In Quantum Mechanics, it sometimesoccurs that a measurement of one
particle will effect the state ofanother particle, even thoughclassically there is no directinteraction
When this happens, the state two ofthe particles is said to be entangled.
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(Teleportation principle)
VV QY ,
22, QY
11, QY
0,0 2121 =+= QQYYEinstein-Podolsky-Rosen entangled state
XC PC VV QY,
XC PC
0],[,],[ 2121 =+= QQYYiQY
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Quantum Entanglements role inteleporting
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In 1998, physicists at theCalifornia Institute of Technology(Caltech), along with two European
groups, turned the IBM ideas intoreality by successfully teleportinga photon.
"The Philadelphia ExperimentOn October 28, 1943 by US NAVY
US Navy ship was invisibly
teleported from Philadelphia to
http://science.howstuffworks.com/framed.htm?parent=teleportation.htm&url=http://www.caltech.edu/http://science.howstuffworks.com/framed.htm?parent=teleportation.htm&url=http://www.caltech.edu/8/14/2019 Technology of the Future is Here!
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In 2002, researchers at theAustralian National University
successfully teleported a laser beam.
On October 4, 2006 at the Niels BohrInstitute in Copenhagen, Denmark.Dr. Eugene Polzik and his teamteleported information stored in alaser beam into a cloud of atoms.
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HUMAN TELEPORTATION
COMMUNICATIONQUANTUM CRYPTOGRAPHY
QUANTUM COMPUTERS
TIME TRAVEL
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The human body consist of 1028 atoms. Sowe have to teleport these atoms with exactprecision. A duplicate of the person wouldbe made at the other end.
Original mind and body no longer exists,their atomic structure would be recreatedat the other end. But there are somelimitations:
By reconstruction we may obtain the body,but can be a dead body
Since a large quantity of information has tobe teleported, it will take years to teleport a
man.
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If teleportation be possible it become thefastest means of Communication.
Tremendous amount of chemicals are nowshipped from one location to another.
This teleportation can be used in militarypurpose for data Encryption
Space exploration can be enhanced. Wecam teleport machinery to space shuttles
or space colonies. Fuels for space stationscan also be teleportedColonizing in mars is not possible today
due to the lack of fresh water, if we canteleport water directly from earthcolonizing in mars is possible
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The basic data unit in a quantumcomputing is a qubit.
In a single qubit it is possible to carrylot of zeros and ones all together.quantum computers have the
potential ability to carry and processlarge amounts of information inparallel and at very high speeds.
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Unlike a classical bit, which isdefinitely in either state, the state ofa Qubit is in general a mix of |0>
and |1>.For convenience, we will use the
matrix representation
== 101
010
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A Quantum Logic Gate is anoperation that we perform on
one or more Qubits thatyields another set of Qubits.
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As in classical computing, the NOTgate returns a 0 if the input is 1 and
a 1 if the input is 0.The matrix representation is
01
10
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Other gates include the Hadamard-Walsh matrix:
And Phase Flip operation:
1111
2
1
i
e0
01
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Quantum teleportation for aqubit
1.Unknown qubit to teleport
2. Share entangled pair
3. Bell-state measurement
4. Send classical message
5. Unitary transformation
+ ba
( )+2
1
( )+1)(iU
zyx ,,,U(i) 1=
i
: Pauli spin operators
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http://science.howstuffworks.com/tel
www.google.comwww.ibmresearchpapers.com www.newscientist.com
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