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Quantum Technology

Module PH2263

This module handbook serves to describe contents, learning outcome, methods and examination type as well as linking to current dates for courses and module examination in the respective sections.

Module version of WS 2019/20 (current)

There are historic module descriptions of this module. A module description is valid until replaced by a newer one.

available module versions
WS 2019/20SS 2018

Basic Information

PH2263 is a semester module in English language at Master’s level which is offered in winter semester.

This Module is included in the following catalogues within the study programs in physics.

  • Specific catalogue of special courses for condensed matter physics
  • Specific catalogue of special courses for Applied and Engineering Physics
  • Complementary catalogue of special courses for nuclear, particle, and astrophysics
  • Complementary catalogue of special courses for Biophysics

If not stated otherwise for export to a non-physics program the student workload is given in the following table.

Total workloadContact hoursCredits (ECTS)
150 h 45 h 5 CP

Responsible coordinator of the module PH2263 is Andreas Reiserer.

Content, Learning Outcome and Preconditions

Content

Quantum theory was originally formulated as a statistical theory that describes ensembles of particles. Meanwhile, however, experiments in many laboratories around the world (and even by Google, IBM, Microsoft and Intel) have demonstrated quantum control over single particles. This has led to the dream of a “second quantum revolution”, in which the strangeness and the power of quantum physics is harnessed to facilitate novel technologies that provide possibilities beyond those offered by any classical device. In diverse settings, theory and proof-of-concept experiments have shown that one can gain unique advantage by storing, transmitting, and processing information encoded in systems that exhibit quantum properties. Examples include quantum cryptography (that allows for unbreakable encryption), quantum measurements (that can provide unprecedented resolution), quantum simulation (that can help to gain insight into complex quantum systems and materials), and quantum information processing (that can dramatically improve computational power for specific tasks).

This module will cover the basic principles that lie at the heart of the mentioned quantum technologies: The quantum harmonic oscillator and quantum two-level systems (qubits), generation and control of single photons and other quantum light fields, entanglement, decoherence, quantum measurement, experimental techniques for qubit control, quantum error correction, atomic clocks, quantum sensing, quantum communication, and the various types of quantum hardware used in current experiments.

Learning Outcome

After successful completion of the module the students are able to:

  • Understand that the control and entanglement of quantum systems is a unique resource
  • Mathematically describe quantum light fields, quantum bits and their coupling to one another
  • Describe techniques to prepare, manipulate and measure quantum systems while avoiding decoherence
  • Understand quantum logic operations and their experimental implementation
  • Understand the open challenges towards the realization of quantum computers and other quantum technologies using current experimental platforms

Preconditions

No preconditions in addition to the requirements for the Master’s program in Physics.

Courses, Learning and Teaching Methods and Literature

Courses and Schedule

TypeSWSTitleLecturer(s)Dates
VO 2 Quantum Technology Rempe, G.
Assistants: Reiserer, A.
Wed, 10:00–12:00, PH II 127
UE 1 Exercise to Quantum Technology Merkel, B. Weiß, L.
Responsible/Coordination: Rempe, G.
dates in groups

Learning and Teaching Methods

The module cosists of a lecture and an exercise.

In the thematically structured lecture the learning content is presented. With cross references between different topics the universal concepts in Quantum technology are shown. In scientific discussions the students are involved to stimulate their analytic-physics intellectual power.

In the exercise the learning content is deepened and exercised using problem examples and calculations. Thus the students are able to explain and apply the learned physics knowledge independently.

Media

Blackboard and PowerPoint presentation

Exercise sheets

Literature

S. Haroche & J.M. Raimond: Exploring the Quantum, ISBN 0198509146

Fox: Quantum Optics, ISBN 9780198566731

More literature recommendations are given in the lecture.

Module Exam

Description of exams and course work

There will be an oral exam of 25 minutes duration. Therein the achievement of the competencies given in section learning outcome is tested exemplarily at least to the given cognition level using comprehension questions and sample calculations.

For example an assignment in the exam might be:

  • Make a sketch of a control sequence that generates a maximally entangled state between two quantum bits.
  • Explain how the individual steps of this control sequence can be implemented with superconducting qubits.
  • Explain the main sources of decoherence for spin qubits in Silicon, and how this decoherence can be reduced by control and materials engineering.

Participation in the exercise classes is strongly recommended since the exercises prepare for the problems of the exam and rehearse the specific competencies.

Exam Repetition

The exam may be repeated at the end of the semester.

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