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