So quantum computing is the future computing
It is more powerful
than a supercomputer and its technology
Its very core concept is different
from a classical computer
Which we are using everyday
in our different jobs.
The concept of computing and shape
of a computer is going to change greatly
In very near future to come
So that is our topics today
What is quantum computing
and what is the future of quantum computing
and we will also going to discuss about the difference
and the comparative study between quantum computing
and classical computing.
This core concept of quantum computing
is today's subject of this video
Please watch this video till the end
Before understanding quantum computing
we have to understand the core concept of the classical computing
In a classical computing we know that the digital circuit
is working on zero and one and
at any point time, for a time specific period
 
The current can flow through a circuit or
the circuit may be off
that means can be zero or it can be off and on or it can be zero and one
So in any normal state, in a particular time
Or a particular state, IT can not be zero and one simultaneously
But that is the difference of core
Core difference between quantum computing
and that classical computing
And before coming to the exact concept of what is
What is quantum computing, we have to have a little bit
knowledge of a very modern and sophisticated branch of physics
and that is called the quantum mechanics
 
Now quantum mechanics is a branch of physics
It deals with the subatomic particles
which are smaller than atom and also deals with the  smallest scale of energy level of atom
The quantum mechanics
deals with the study of the subatomic particle's behaviours
How they behave, how their energy level behave
in such way. So the quantum computing
works on the procedure or phenomena
we find in quantum mechanics
It is a hugely developed and sophisticated branch of physics
But the basic core concept is
that it deals with the sub atomic particle
and the smallest scale energy level of those sub atomic particle
and the smallest scale energy level of those sub atomic particles. So
coming back to our discussion of what is quantum computing
Quantum computing runs on the quantum mechanical rules
Quantum computing runs on the quantum mechanical rules
to rules you can say rules of sub atomic particle
which has been used in devolving
in devolving the mechanism
of a quantum computing, and that is
one is superposition and another is entanglement
So I will come to the concept what is superposition and  entanglement rules.
 
Both superposition and entanglement rules
we can see in quantum physics, and the same concept
has been implemented in devolving
designing quantum computing
So in quantum computing
Now what is superposition?
In superposition any two quantum state can be added to
get another valid quantum state.
Particles can be in two states at a given time
So that is one of the core concept of
quantum computing, that it
can be
 
At any point of time it can be either zero or one
or both, which not possible in case of
classical computing concept.
That is why the superposition concept is applied
in devolving the quantum computing
So another concept concept is entanglement
This quantum mechanical phenomenon
occurs when pair and groups of particles
interact in such a way that each particle loose their
own independent quantum state and they
become a new identity
carrying a different independent quantum state
So two core concepts,
superposition and entanglement
which is also the basic conception of designing and developing
the quantum computing.
If we make a comparative study between quantum computing and the classical computing,
we see that quantum computers are able to solve
hard computational problem
and challenges much faster and efficiently
when compared with classical computers.
So quantum computer are able to solve hard computational problem
and challenges much faster
and efficiently when compared to or with the classical computers
Quantum computers are capable of solving complex problem
Quantum computer can do parallel processing
at a time many many processing can parallelly executed
 
For example, 4 qubit quantum computer processor
can run 16 calculations simultaneously
So you can see the power
of a quantum computer and that is
the future computing
Classical computers are made up of silicon chips
and they works on the core concept of
off or on state
or one or zero state.
That is always on a particular single state
You know the 0 and 1 unit is marked as bit.
But contrary to this concept
in quantum computing
the quantum computers
uses quantum bit or qubits
and that is
nothing but a superposition of zero and one.
So a qubit can be zero or one or
can be
both zero and one. So that's the peculiarity
or peculiar conception
of the quantum computing
If we see the prospect and the development
of the artificial intelligence, we will get an new hope
from the designing and  developing
the quantum computing
because more and more quantum computing is used in
AI field
Artificial Intelligence will become more powerful and speedier
So today's classical computers
is not that capable of handling
huge model
having huge amount of data
at a time and AI become more and more efficient
and more more accurate
predictive model become more accurate
with the use of quantum computing
that's the future
we all have
One very disadvantage, you can call or peculiarity
of designing a
quantum computing processor
is that quantum computers have to be kept
it has to work in almost absolute zero temperature
 
quantum computer can works
in zero Kelvin, you know  equal to -273.15 C
or
-459.67 F
There are companies who are telling that
they have developed
some quantum computer at
very near to the absolute zero
temperature
So in the days to come
our computer will be in a
if been processed
or our quantum computer if been available
its processor has be kept
at absolutely zero temperature
that is the peculiarity
and that is the challenge for our
today's scientific world
that how can this quantum computer can
be used in mobile
or other kind of devises, so that's the
challenges we have to face
and the future has the answer whether we can solve this problem
There are another filed which is developing
is quantum cryptography, see classical computer
is not always capable to solve
complex cryptographic problem
So to solve this complex cryptographic problem
the use of of quantum computing
is the solution
and quantum computer
using the quantum mechanism can
solve complex cryptographic tasks
which is even not possible by classical
computers and that is obviously
going to provide a more
secure cyber ecosystem in the days to come.
Today's scientific world have lot of hopes from this quantum computing
development project in the days to come
Because it can deal and process huge
amount of data
which classical computer can not
Today's modern world are hoping for
building a model
for example a complex human brain,
or even the entire world
or even can crack the mystery of the universe
if we can have quantum computing
because 2 to the power n, if the n is
thousand and above
its computational power
is miracle
it is beyond our imagination
if we see from larger perspective
quantum computer is in a very infant stage
is in a very infant stage
There are companies, like IBM, Google
Microsoft, these are working on it
for long, IBM is working
for quantum computer for long 35 years
and they have
come with a quantum computing model
they are working on quantum computing development
Google has also come
with their quantum computing processor
Microsoft has come with a Microsoft
quantum network system, D-Wave Systems
has announced that they have built
the world's first commercially available
quantum computer, there are companies like
Intel, IonQ, Alibaba, they are also working
on building up a sound
flawless, error-free
quantum computers
in the future
We are hoping for and there are lot researches going on
through out the world
and the expected result is that
to build up a quantum computer
which will be error free, working on large number of qubits
and which will
work for a longer computational periods
and obviously we will achieve
and if this be achieved
then only we can achieve the absolute
digital supremacy and that will be supremacy in true sense.
 
and the answer lies obviously with future
whether at any point of time in the future
people are saying after ten or five
years,
this quantum computer
will be a reality
and I mean to say, the quantum computing
which is error free, working on a large number of qubits
and which will work
for a longer computational period
So the answer lies with the future.
With this note friend I end up this video..
Please comment how you like this video
Subscribe my channel on
Electronic evidence and cyber crimes laws
Thank you
once again
