2. What is the Need?
What is Teleportation?
Previous Theory
Flaws
EPR Effect
Steps Involved in Teleportation
Human Teleportation
Applications
Telepresence
Successful Experiments
Advantages
References
3. need
Various forms of transportation require us to cross a
physical distance, which can take anywhere from
minutes to many hours.
Telecommunications
+
Transportation
=
Teleportation.
4. Teleportation includes making an object or person
disintegrate in one place while a perfect replica
appears somewhere else.
5. The procedure for teleportation in science fiction
varies from story to story but generally goes as
follows:
A device scans the original object to extract all the
information needed to describe it.
A transmitter sends the information to the
receiving station, to obtain an exact replica of the
original.
6. It violated the Heisenberg’s Uncertainty principle .
Thus, one cannot perform a perfect scan of the object to
be teleported
The location or velocity of every atom and electron would
be subjected to errors.
Heisenberg’s uncertainty principle makes it impossible to
measure the exact, total quantum state of any object with
certainty.
Therefore, it would seem that a perfect copy
cannot be made.
7. To circumvent the limitation imposed by uncertainty
principle EPR theorem was derived.
It states that when two particles come into contact with
one another, they can become "entangled".
In an entangled state, both particles remain
part of the same quantum system so that whatever you do
to one of them affects the other one in a predictable way.
Thus, it shows how, in principle, entangled particles might
serve as "transporters" of sorts.
8. ENTANGLED PHOTON PAIRS are created when a laser beam
passes through a crystal such as beta barium borate. It converts a
single photon into two photons of lower energy, one polarized
vertically (on red cone), one polarized horizontally (on blue cone). If
the photons happen to travel along the cone intersections (green),
neither photon has a definite polarization, but their relative
polarizations are complementary; they are then entangled.
9.
10. A pair of highly entangled ions B and C are created.
The state to be teleported is created in A. Then B is
entangled with A.
The internal state of both these is then measured and result
sent to C
This transforms the quantum state of ion C into that created
for A.
11. The laws of physics may even make it impossible to
create a transporter that enables a person to be sent
instantaneously to another location, which would
require travel at the speed of light.
For a person to be transported, a machine would have
to be built that can pinpoint and analyze all of the
1028atoms that make up the human body.
Molecules couldn't be even a millimetre out of
place, lest the person arrive with some severe
neurological or physiological defect.
12.
13.
14. In 1998, physicists at the California Institute of Technology
along with two European groups, successfully teleported
a photon across 3.28 feet of coaxial cable.
In 2002, researchers at the Australian National University
successfully teleported a laser beam.
In 2004, Researchers from the University of Vienna and
the Austrian Academy of Science teleported particles of
light over a distance of 600m
15. And They Continued..
In 2006,physicists at Niels Bohr Institute in
Copenhagen, Denmark, teleported information
stored in a laser beam across 1.6 feet.
In May 2010, A team of 15 Chinese researchers
from Tsinghua University in Beijing and the Hefei
National Laboratory, achieved secure quantum key
distribution over 16 kilometres of free space.
16. In April 2011,physicist at University of Tokyo, teleported a
complex set of quantum information from one point to another.
17. QUANTUM INFORMATION : We can use polarization states of
photons i.e. +-45 degree to define on-off state of the transistors
Like we have 0 and 1 in binary and electrons with spin-up and
spin-down states to encode the information. These quantum
bits of information are called qubits.
QUANTUM CRYPTOGRAPHY : To send a key send photons in one
of four polarizations: -45, 0, 45, or 90 degrees. The receiver
measures the incoming photons, randomly choosing whether to
measure at 90 degrees or 45 degrees, records the results but
keeps them secret. The sender tells the receiver which of the
measurements were of the correct type. Both the sender and
receiver keep only the bits that were measured correctly, and in
this way they form the key.
18. Telepresence system is unique and has been
designed to enable a life-size image of a person to
appear within a 3D environment.
You can :-
make eye contact with individuals
use props
hold true two-way conversations - communicating
naturally with anyone or any group of people
anywhere in the world.
× The only thing you can't do is shake hand.
19. Tata Communications began public room service in India in
July 2008 and currently have 30 public Telepresence rooms
live globally.
These rooms can be reserved by anyone for a pay-per use
hourly rate, typically in the $500/hour range.
They are accessible 7 24 and are proven as a cost-effective
method for enabling higher quality collaboration across
geographies.
Major manufactures of telepresence equipment are; Cisco,
Polycom, Tandberg, HP Halo and Lifesize.
20. Transmission at higher rates.
Secure Data transmission.
Can detect eavesdropping.
Transportation becomes easier.
Reduced cost for transportation.
Accidents will be completely absent.
Fastest transportation.
21. In future we will not be surprised to see such sign boards
