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Quantum Computing –<br />
The Future of the Computers.<br />
With the right mathematical background and<br />
talent, Quantum Computing could be a very<br />
rewarding field to pursue.<br />
able to access your credit card number and your<br />
bank Since factoring is very hard, no<br />
eavesdropper will be account is safe. Unless,<br />
that is, somebody has built a quantum<br />
computer and is running Peter Shor's<br />
algorithm!<br />
Future uses of Quantum Computing :<br />
Quantum Computing is essentially harnessing<br />
and exploiting the amazing laws of quantum<br />
mechanics to process information. A traditional<br />
computer uses long strings of “bits,” which<br />
encode either a zero or a one. A quantum<br />
computer, on the other hand, uses quantum<br />
bits, or qubits.<br />
What can a quantum computer do<br />
that a classical computer can’t?<br />
Multiplying two large numbers is easy for any<br />
computer. But calculating the factors of a very<br />
large (say, 500-digit) number, on the other<br />
hand, is considered impossible for any classical<br />
computer.<br />
RSA encryption, the method is used to encrypt<br />
your credit card number when you’re shopping<br />
online, relies completely on the factoring<br />
problem. The website you want to purchase<br />
from gives you a large "public" key (which<br />
anyone can access) to encode your credit card<br />
information. This key actually is the product of<br />
two very large prime numbers, known only to<br />
the seller. The only way anyone could intercept<br />
your information is to know those two prime<br />
numbers that multiply to create the key. Since<br />
factoring is very hard, no eavesdropper will be<br />
Quantum Computing could help us design new<br />
drugs and new materials, such as<br />
superconductors that work at room<br />
temperature.<br />
<br />
<br />
<br />
Quantum computer is inherently faster<br />
than a classical computer is at searching<br />
through a space of potential solutions<br />
for the best solution.<br />
Quantum Computing could help us<br />
design new drugs and new materials,<br />
such as superconductors that work at<br />
room temperature.<br />
The pioneering work being done today<br />
is paving the way for the coming<br />
quantum era. The quantum revolution<br />
is already under way, and the<br />
possibilities that lie ahead are limitless.<br />
T. LAHARIKA<br />
III,II Sem,CSE<br />
“The greatest sin is to think yourself weak” ― Swami Vivekananda, Pearls of Wisdom 10<br />
9
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