Quantum cellular automaton - Quiz
  • 1. Who introduced the first formal model of quantum cellular automata to be researched in depth?
A) Reinhard Werner
B) David Meyer
C) John Watrous
D) Craig Lent
  • 2. Why was the first wave of quantum cellular automata models considered to be defined too loosely?
A) They are only compatible with CMOS technology
B) They fail to simulate classical gas dispersion
C) They allow superluminal signalling
D) They cannot simulate quantum circuits
  • 3. How do modern models of quantum cellular automata picture themselves?
A) As a single static quantum gate
B) As an infinite series of independent classical bits
C) As a purely classical simulation on quantum dots
D) As a large quantum circuit repeating across time and space
  • 4. What is the primary motivation for the models proposed by David Meyer, Bruce Boghosian, and Washington Taylor?
A) Standardizing superluminal signalling
B) Simulating quantum lattice gases
C) Replacing classical computation with quantum dots
D) Developing CMOS technology
  • 5. Who provided criteria to determine when a QCA can be described as a quantum lattice gas automaton?
A) Pablo Arrighi and Vincent Nesme
B) Doug Tougaw and Craig Lent
C) John Watrous and Wim van Dam
D) Asif Shakeel and Peter Love
  • 6. What technology did Doug Tougaw and Craig Lent propose to replace with quantum dot cellular automata?
A) CMOS technology
B) Quantum lattice gas automata
C) Vacuum electromagnetic fields
D) Fermionic cellular automata
  • 7. What is the primary difference between the proposal by Tougaw and Lent and models that perform quantum computation?
A) Tougaw and Lent perform classical cellular automata
B) Tougaw and Lent use only fermionic cells
C) Tougaw and Lent are superluminal
D) Tougaw and Lent do not use quantum dots
  • 8. What is the simplest version of a Fermionic Cellular Automaton mentioned in the text?
A) Dirac QCA
B) CMOS-based QCA
C) Weyl QCA
D) Lattice gas QCA
  • 9. What does the massless version of a Dirac QCA, the Weyl QCA, reproduce?
A) The behavior of CMOS circuits
B) The stability of the free Dirac vacuum
C) The dynamics and statistics of the electromagnetic field in vacuum
D) The dispersion of classical gases
  • 10. What remains a significant problem in the modeling of Dirac QCAs?
A) Defining superluminal signalling
B) Defining a stable free Dirac vacuum
C) Calculating low-momentum regimes
D) Integrating with CMOS technology
  • 11. Which researchers are part of the second wave of QCA models that do not suffer from locality issues?
A) Susanne Richter and Reinhard Werner
B) Doug Tougaw and Craig Lent
C) John Watrous and Huong LêThanh
D) Asif Shakeel and Peter Love
  • 12. What is a major advantage of quantum dot cellular automata in nanofabrication?
A) Increased CMOS voltage
B) Simplified programming languages
C) Higher thermal output
D) Ultra-low power consumption
  • 13. What physics-like symmetry requires that a cell's next state depends only on its neighbors?
A) Universality
B) Reversibility
C) Locality
D) Homogeneity
  • 14. Which researcher suggested an initial approach to quantizing cellular automata in 1982?
A) Gerhard Grössing
B) Richard Feynman
C) John von Neumann
D) David Deutsch
  • 15. Who presented a formal development of quantum cellular automata in 1985?
A) John von Neumann
B) Gerhard Grössing
C) David Deutsch
D) Richard Feynman
  • 16. What is the physical size of quantum dot cellular automata features?
A) Centimeter scale
B) Millimeter scale
C) Molecular or atomic scale
D) Microscopic scale
  • 17. In the context of quantum cellular automata, what are the computing devices called?
A) Nodes
B) Units
C) Bits
D) Cells
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