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Quantum Computers and their Applications 

Kvantumszámítógépek és alkalmazásaik
A tantárgyleírás hatályossága
Hatályosság kezdete:
2026. March 21.
Hatályosság vége:
Subject name (Hungarian, English)
Kvantumszámítógépek és alkalmazásaik
Quantum Computers and their Applications 
Subject code BMEVIHIMA24
Subject type
Training Level
Course types and hours (weekly/semester)
Course type lecture tutorial laboratory
hours (weekly) 2 1 0
type (linked/independent) derived course
Assessment type vizsga
Credits 5
Subject coordinator
DR. Imre Sándor Zsolt
position: egyetemi tanár
Responsible department
Hálózati Rendszerek és Szolgáltatások Tanszék
Faculty Villamosmérnöki és Informatikai Kar
Subject website
Primary curriculum type
Direct prerequisites – Strong prerequisite none
Direct prerequisites – Weak prerequisite none
Direct prerequisites – Parallel prerequisite none
Direct prerequisites – Milestone prerequisite none
Direct prerequisites – Exclusion none

Objectives

Programme
Detailed topics of lectures
1.    Motivations. The potential of quantum computing. Quantum mechanics basics.
2.    Postulates of quantum computing: quantum bits, operations, measurement, register. Entanglement and its effects.  
3.    Bell states. EPR paradox. Measurement techniques: projective and POVM measurement.
4.    Fundamentals of quantum computing (No Cloning Theorem, generation of superposition quantum bits, quantum parallelism). Design methodology of quantum algorithms.
5.    Quantum computing algorithms: database management (finding a given element, finding the optimum, reducing error probability)
6.     Quantum computing algorithms: quantum Fourier transform, order search, Shor algorithm
7.    Post-quantum cryptography
8.    Overview of physical architectures and current implementations of quantum computers
9.    Implementation challenges of quantum hardware (quantum bits, quantum gate error correction)
10.    Complexity problem class of quantum computers
11.     Quantum computing: benchmarking
12.    Programming quantum computers
13.     Quantum artificial intelligence
14.     End of semester summary. Outlook: the market and future of quantum computers

Detailed topics for exercises/labs
1.    Operations with quantum bits and quantum registers (tensor multiplication)
2.    Design of quantum information algorithms (construction exercise)
3.    Decomposition: reduction of unitary transforms to elementary gates (practical example: quantum Fourier transform)
4.    Statistical testing of quantum random numbers
5.    Handling quantum bits with quantum computers of different architectures
6.    Complex quantum algorithms
7.    Next generation quantum computers
The main objectives of the course are to provide knowledge on the operation and programming of quantum computers. In this context, students will become familiar with the different quantum computer architectures. On the other hand, the design methodology of quantum algorithms and the most important efficient algorithms will be presented, as well as the state-of-the-art quantum computer programming languages and systems that allow them to run on quantum computers. Finally, students will be introduced to benchmarking techniques to qualify quantum computing systems.

Learning outcomes

Ez a tantárgy a KKK rendeletben meghatározott, következő kompetenciák fejlesztését szolgálja:

Knowledge

No learning outcomes recorded.

Skills

No learning outcomes recorded.

Attitudes

No learning outcomes recorded.

Autonomy and responsibility

No learning outcomes recorded.

Oktatási módszertan

Lecture. Successful completion of the subject and the interdependence of knowledge require to continuous follow the content of the lectures.   Practice: review of lecture material, supplemented by practical examples.

Tanulástámogató anyagok

Online források
S. Imre, F. Balázs: Quantum Computing and Communications – An Engineering Approach, Published by John Wiley and Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, 2005, ISBN 0-470-86902-X, 283 oldal; Additional Hungarian and English language resources are available in electronic form.

Recommended preliminary knowledge for completing the subject

Knowledge type competencies
(azon előzetes ismeretek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
probability, linear algebra
Skill type competencies
(azon előzetes képességek és készségek összessége, amelyek megléte nem kötelező, de a tantárgy eredményes teljesítését nagyban elősegíti)
nincs
Recommended (non-compulsory) preliminary competencies
(azon ajánlott (nem kötelező) előzetesen megszerzendő kompetenciák összessége, amelyek jelentősen hozzájárulnak a tantárgy eredményes teljesítéséhez)
probability, linear algebra
General rules
Requirements: During the semester, students write 1 mid-term exam and 2 small homework assignments. The criteria for the successful semester: minimum of 40% of the score of the mid-term exam AND minimum of 40% of the total score of the two small assignments. Oral exam Additional possibilities: Students will be given the opportunity to retake the mid-term exam during the retake week. Late submission of the two small homework assignments is possible until the fourth day of the retake week for a special fee.
Assessment methods
In-term assessments

No detailed assessments provided.

Weight of in-term assessments

No weights provided.

Exam-period assessments

No detailed assessments provided.

Weight of exam elements

No weights provided.

Grade calculation

No grade thresholds provided.

Attendance requirements

No attendance requirements provided.

Rules for retake and resubmission

Not provided.

Short description

Not provided.

Detailed description

Not provided.

Recommended courses

Not provided.

Workload to complete the subject

No workload breakdown provided.

Validity of subject requirements
Requirements valid from:
Requirements valid until:
Curriculum placement

No curriculum placements recorded for this subject version.