Cluster of Excellence MCQST

At MCQST, the “Cluster of Excellence Munich Center for Quantum Science and Technology,” we are interested in questions of quantum communication and quantum information theory, and are especially interested in models for analog quantum computing and Turing quantum computing.

In quantum communication and quantum information theory, we focus on:

  • the characterization of channel capacities for transmission of quantum information with and without attackers
  • the role of entanglement for classical and quantum communication
  • finite block length performance for communication protocols
  • resource theory for quantum communication networks
  • computability of capacity formulas

In the areas of analog quantum computing and Turing quantum computing, we focus on:

  • analog quantum computer models
  • quantum Turing machines
  • complexity blow-up behavior of Turing machines
  • advantages of analog quantum computers for physical problems
  • advantages of analog quantum computers for the calculation of performance parameters for quantum communication systems

On the homepage of the Munich Center for Quantum Science and Technology you will find all news and events.

Further information on the publications can also be found on the member page of Prof. Holger Boche at the MQCST.

Literature on Quantum Communication and Quantum Information Theory

Journal Publications

Universal superposition codes: Capacity regions of compound quantum broadcast channel with confidential messages 

  • Author(s): H. Boche, G. Janssen, S. Saeedinaeeni
  • Journal title: Journal of Mathematical Physics (Band / Volume:61) - April 2020

Message transmission over classical quantum channels with a jammer with side information: Correlation as resource, common randomness generation 

  • Author(s): H. Boche, M. Cai, N. Cai
  • Journal title: Journal of Mathematical Physics  (Band / Volume: 61) - Juni 2020; Page details Contribution: 062201 Online

Denial-of-Service Attacks on Communication Systems: Detectability and Jammer Knowledge

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor 
  • Journal title: IEEE Transactions on Signal Processing (Band / Volume: 68) - Mai 2020; Page details Contribution: 3754-3768

Secure Communication and Identification Systems – Effective Performance Evaluation on Turing Machines 

  • Author(s):H. Boche, R.F. Schaefer, H.V. Poor
  • Journal title: IEEE Transactions on Information Forensics and Security (Band / Volume: 15) - 2020; Page details Contribution: 1013-1025

Identification Capacity of Channels with Feedback: Discontinuity Behavior, Super-Activation, and Turing Computability 

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Journal title: IEEE Transactions on Information Theory - Juni 2020

Secure Storage Capacity under Rate Constraints — Continuity and Super Activation 

  • Author(s): S. Baur, H. Boche, R.F. Schaefer, H.V. Poor
  • Journal title: IEEE Transactions on Information Forensics and Security (Band / Volume: 15) - 2020; Page details Contribution: 959-970

Secret message transmission over quantum channels under adversarial quantum noise: Secrecy capacity and super-activation

  • Author(s): H. Boche, M. Cai, J. Nötzel, C. Deppe
  • Journal title: Journal of Mathematical Physics  (Heft / Issue: 60) - Juni 2019; Page details Contribution: 062202-1 to 062202-39 

Message Transmission Over Classical Quantum Channels With a Jammer With Side Information: Message Transmission Capacity and Resources

  • Author(s): H. Boche, M. Cai, N. Cai
  • Journal title: IEEE Transactions on Information Theory (Journal volume: 65; Journal issue: 5) - Mai 2019; Page details Contribution: 2922 - 2943

Simultaneous transmission of classical and quantum information under channel uncertainty and jamming attacks

  • Author(s): H. Boche, G. Janssen, S. Saeedinaeeni
  • Journal title: Journal of Math Physics (Band / Volume: 60; Heft / Issue: 2) - Februar 2019; Page details Contribution: 29 pages

Conference Contribution

Computability of the Zero-Error capacity with Kolmogorov Oracle

  • Author(s): H. Boche, C. Deppe:
  • Event: 2020 IEEE International Symposium on Information Theory, IEEE, ISIT 2020; 21.-26.06.2020

Capacity Regions for Compound Quantum Broadcast Channels with Confidential Messages

  • Author(s): H. Boche, G. Jannsen, S. Saeedinaeeni
  • Event: Munich Conference on Quantum Science and Technology 2020, MCQST 2020; 06.-08.07.2020

Universal superposition codes: capacity regions of compound quantum broadcast channel with confidential messages

  • Author(s): H. Boche, G. Janssen, S. Saeedinaeeni
  • Event: 2020 IEEE International Symposium on Information Theory, IEEE, ISIT 2020; 21.-26.06.2020

Quantum Semantic Security. Munich Conference on Quantum Science and Technology 2020

  • Author(s): H. Boche, M. Cai, C. Deppe, R. Ferrara, M. Wiese
  • Event: Munich Conference on Quantum Science and Technology 2020, MCQST 2020; 06.-08.07.2020

Semantic Security for Quantum Wiretap Channels

  • Author(s): H. Boche, M. Cai, C. Deppe, R. Ferrara, M. Wiese
  • Event: 2020 IEEE International Symposium on Information Theory, IEEE, ISIT 2020; 21.-26.06.2020

On the Algorithmic Computability of Achievability and Converse: ϵ-Capacity of Compound Channels and Asymptotic Bounds of Error-Correcting Codes

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 2020 IEEE International Symposium on Information Theory, IEEE, ISIT 2020; 21.-26.06.2020

On the ε-Capacity of Finite Compound Channels with Applications to the Strong Converse and Second Order Coding Rate

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 54th Annual Conference on Information Sciences and Systems, Princeton University, 2020; CISS; 18-20.03.2020

Robust Transmission over Channels with Channel Uncertainty: An Algorithmic Perspective

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing, IEEE, 2020; ICASSP 2020; 04.-08.05.2020

Secure and Robust Identification via Classical-Quantum Channels

  • Author(s): H. Boche, C. Deppe, A. Winter
  • Event: IEEE Transactions on Information Theory (Band / Volume: 65; Heft / Issue: 10) - Oktober 2019; Seitenangaben Beitrag: 6734 - 6749

Universal random codes: capacity regions of the compound quantum multiple-access channel with one classical and one quantum sender

  • Author(s): H. Boche, G. Janssen, S. Saeedinaeeni
  • Event: Quantum Information Processing (Heft / Issue: 18) - Juni 2019

Simultaneous transmission of classical and quantum information under channel uncertainty and jamming attacks

  • Author(s): H. Boche, G. Janssen, S. Saeedinaeeni
  • Event: 2019 IEEE International Symposium on Information Theory, IEEE, 2019, ISIT 2019

Message Transmission over Classical Quantum Channels with a Jammer with Side Information, Correlation as Resource and Common Randomness Generating

  • Author(s): H. Boche, M. Cai, N. Cai
  • Event: 2019 IEEE International Symposium on Information Theory, IEEE, 2019, ISIT 2019

On the Structure of the Capacity Formula for General Finite State Channels with Applications

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: IEEE Information Theory Workshop, IEEE, 2019, ITW 2019

Coding for Non-IID Sources and Channels: Entropic Approximations and a Question of Ahlswede

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: IEEE Information Theory Workshop, IEEE, 2019, ITW 2019

Resource Allocation for Secure Communication Systems: Algorithmic Solvability

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: IEEE International Workshop on Information Foresnics and Security, IEEE, 2019, WIFS

Turing Meets Shannon: On the Algorithmic Computability of the Capacitites of Secure Communication Systems

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: IEEE International Workshop on Signal Processing Advances in Wireless Communications, IEEE, 2019, SPAWC 2019

Identification Capacity of Correlation-Assisted Discrete Memoryless Channels: Analytical Properties and Representations

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 2019 IEEE International Symposium on Information Theory, IEEE, 2019, ISIT 2019

Detectability of Denial-of-Service Attacks on Communication SystemsVeranstaltung

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 2019 IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE, 2019, ICASSP 2019

On the Computability of the Secret Key Capacity Under Rate Constraints

  • Author(s): H. Boche, R.F. Schaefer, H.V. Poor
  • Event: 2019 IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE, 2019, ICASSP 2019

Literature on Turing and analog Computability

Journal Publications

Turing Computability of Fourier Transforms of Bandlimited and Discrete Signals

  • Author(s): H. Boche, U.J. Mönich
  • Journal title: IEEE Transactions on Signal Processing (Band / Volume: 68, Heft / Issue:1) - Januar 2020; Page details Contribution: 532-547

On the Algorithmic Solvability of Spectral Factorization and Applications

  • Author(s): H. Boche, V. Pohl
  • Journal title: IEEE Transactions on Information Theory (Band / Volume: 66, Heft / Issue: 7) -  Juli 2020, Page details Contribution: 4574-4592

Turing meets circuit theory: Not every continuous-time LTI system can be simulated on a digital computer (accepted for publication)

  • Author(s): H. Boche, V. Pohl
  • Journal title: IEEE Trans. Circuits and Systems-I

Conference Contribution

Optimal Sampling Rate and Bandwidth of Bandlimited Signals - An Algorithmic Perspective

  • Author(s): H. Boche, U. Mönich
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020)

Computability of the Peak Value of Bandlimited Signals

  • Author(s): H. Boche, U. Mönich
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020)

Effective Approximation of Bandlimited Signals and Their Samples

  • Author(s): H. Boche, U. Mönich
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020)

Can Every Analog System be Simulated on a Digital Computer?

  • Author(s): H. Boche, V. Pohl
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020)

Computing Hilbert Transform and Spectral Factorization for Signal Spaces of Smooth Functions

  • Author(s): H. Boche, V. Pohl
  • Event: 45th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020)

Analytic Properties of Downsampling for Bandlimited Signals

  • Author(s): H. Boche, U.J. Mönich
  • Event: 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2019)

Computability of the Fourier Transform and ZFC

  • Author(s): H. Boche, U.J. Mönich
  • Event: 13th International Conference on Sampling Theory and Applications, 2019 (SampTA)

Turing Computability of the Fourier Transform of Bandlimited Functions

  • Author(s): H. Boche, U.J. Mönich
  • Event: 2019 IEEE International Symposium on Information Theory (ISIT 2019)

On the Fourier Representation of Computable Continuous Signals

  • Author(s): H. Boche, U.J. Mönich
  • Event: 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2019)

Analytic Properties of Downsampling for Bandlimited Signals

  • Author(s): H. Boche, U.J. Mönich
  • Event: 2019 IEEE International Conference on Acoustics, Speech and Signal Processing(ICASSP 2019)

On the Algorithmic Solvability of the Spectral Factorization and the Calculation of the Wiener Filter on Turing Machines

  • Author(s): H. Boche, V. Pohl
  • Event: 2019 IEEE International Symposium on Information Theory ( ISIT 2019)