Quantum computing harnesses the principles of quantum mechanics, like superposition and entanglement, to perform computations, potentially solving problems far beyond the capabilities of classical computers. Here's a more detailed explanation: Key Concepts: Qubits: Unlike classical bits that represent 0 or 1, qubits can exist in a "superposition" of both states simultaneously, allowing for parallel processing and the potential for faster calculations. Superposition: A qubit can exist in a combination of both 0 and 1 states until measured, enabling quantum computers to explore multiple possibilities at once. Entanglement: The states of two or more qubits can become linked, meaning that measuring one qubit instantly influences the state of the other, regardless of the distance between them. Quantum Algorithms: These algorithms are designed to take advantage of quantum phenomena to solve specific problems more efficiently than classical algorithms. Quantum Hardware: Quantum computers are built using specialized hardware, such as superconducting circuits or trapped ions, to create and manipulate qubits. Potential Applications: Drug Discovery: Quantum computers could simulate molecular interactions to accelerate the development of new drugs and therapies. Materials Science: They could help design new materials with specific properties, leading to advancements in areas like energy storage and electronics. Cryptography: Quantum computers could potentially break current encryption methods, necessitating the development of quantum-resistant cryptography. Financial Modeling: Quantum algorithms could be used to optimize investment portfolios and detect fraud. Artificial Intelligence: Quantum machine learning could lead to breakthroughs in areas like pattern recognition and natural language processing. Challenges: Scalability: Building and maintaining stable quantum computers with a large number of qubits is a significant engineering challenge. Error Correction: Quantum systems are highly sensitive to noise and errors, requiring sophisticated error correction techniques. Coherence: Maintaining the quantum state of qubits for long enough to perform computations is crucial, but qubits are easily affected by their environment. Quantum computing - Wikipedia The basic unit of information in quantum computing, the qubit (or "quantum bit"), serves the same function as the bit in classical... Wikipedia What Is Quantum Computing? - IBM 5 Aug 2024 — Ian Smalley. Senior Editorial Strategist. What is quantum computing? Quantum computing is an emergent field of cutting-e... IBM What is Quantum Computing? How it Works and Examples Organizations today use traditional computers to encrypt their data. They use large, complex prime numbers to encrypt data, which ... TechTarget Show all Show more हिन्दी में In English Quantum computing is a multidisciplinary field comprising aspects of computer science, physics, and mathematics that utilizes quantum mechanics to

1. • Quantum computers take up a fraction of the space of classical computers.
• Level of power that can find solutions to problems out of the reach of
today's computers.
• By decreasing the size of transistors we are gradually approaching to the atom
stage, beyond which we can’t move down except applying the quantum
mechanics which in-turn give rise to quantum computing.
• "A quantum computer can create superposition with multiple probabilities that
we cannot achieve today, let alone examine the features of those
probabilities. With this type of application, the quantum computer will be
much more efficient than a classical computer,” asserts García Ripoll.

2. Presented By – AADITYA TOMAR
RHYTHUM MANTRI
GAYATRI BELWALKAR

3. “
”
Max Planck
Father of Quantum Physics

4. • Quantum computing is an area of computer science that uses the
principles of quantum theory. Quantum theory explains the behavior of
energy and material on the atomic and subatomic levels.
• Quantum computing uses subatomic particles, such as electrons or
photons. Quantum bits, or qubits, allow these particles to exist in
more than one state (i.e., 1 and 0) at the same time.

5. • A qubit is a two-level quantum system where the two basis
qubit
states are usually written as
1
1
2
2
∣ 0⟩ and ∣
1⟩.
• A qubit can be in
state
1 1
2
2
∣ 0⟩ and ∣ 1⟩ or (unlike a classical
bit)
in a linear combination of both states. The name of this
phenomenon is superposition.

7. • 1982 – Richard Feyman proposed the idea of creating machine
based on the laws of quantum mechanics.
• 1985 – David Deutsch developed the quantum Turing machine,
showing that quantum circuits are universal.
• 1994 – Peter Shor came up with a quantum algorithm to factor
very large numbers in polynomial time.
• 1997 – Lov Grover develops a quantum search algorithm
with O( 𝑁) complexity.

8. • The quantum system is capable of being in several different states at
the same time.
• Example – Young’s Double Slit Experiment

9. Let’s say you invite five colleagues to your wedding, and you need to
plan their seating arrangements. The total number of ways to do so is 5! = 120.
Now, a conventional computing system tends to evaluate each of the
120 possibilities, compare them, and then decide on the final optimization.
However, a quantum computer undertakes the following steps
for optimizing seat allocation:

10. 1.Considers qubits and creates quantum superposition for all possible quantum states.
2.The encoder applies phases to each quantum state and configures the qubits. For the
possible sitting ways that fall in phase, the amplitudes add up, while for the out-of-
phase ways, the amplitudes cancel out.
3.The quantum computer then uses interference to reinforce or amplify some answers and
cancel or diminish the others. As a result, a single solution for optimized seat allocation
is finally reached.

14. •Quantum Annealing: A specialized quantum computing
method used for optimization problems by finding the
lowest energy state of a system.
•Quantum Simulation: The use of quantum computers to
model and study quantum systems that are difficult to
simulate on classical computers.
•Universal Quantum Computing: A fully programmable
quantum computing approach that can perform any
computational task using quantum gates, similar to
classical computers but leveraging quantum mechanics.

15. • Algorithm creation
• The low temperature needed
• Not open for public
• Internet Security

16. • IBM
• D-Wave Systems
• Google
• Microsoft Corporation
• Rigetti Computing
• IonQ

17. • Quantum computers have the potential to revolutionize computation
by making certain types of classically intractable problems
solvable.
• While no quantum computer is yet sophisticated enough to carry
out calculations that a classical computer can't, great progress is
under way.
• Quantum simulators are making strides in fields varying from
molecular energetics to many-body physics.