Graphene Lattice Matrix
A "graphene carbon matrix for superconducting quantum computing" refers to using a sandwich of graphene layers in a honeycomb
lattice, bonded on a substrate such as boron nitride, as the foundational material in building
superconducting qubits, the basic building blocks of a quantum computer. This qubit building block leverages graphene's
exceptional conductivity and unique electronic properties to potentially achieve a more stable and efficient quantum
computer operating at higher temperatures compared to presently used near absolute zero superconducting materials. QuantumExtra
is contributing to the development of the carbon based quantum computer.
Key points about using graphene in superconducting quantum computing: Graphene and Fullerene Entanglement
"Carbon Dirac fermions" refers to the behavior of electrons in a carbon-based material like graphene, where they can be described
as "Dirac fermions" due to their unique properties that mimic the relativistic Dirac equation, leading to high mobility and
interesting quantum phenomena; when discussing "entanglement" in this context, it means that these Dirac fermions in a carbon
material like a graphene lattice can become entangled with each other, exhibiting a quantum correlation where the state of
one fermion is linked to the state of another, even when separated by distance.
Spintronics of electrons of carbon:
Defined by the conservation of angular momentum, whenever the first particle is measured to be spin up on some axis,
the other of the pair, when measured on the same axis, is always found to be spin down. This is called the spin anti-correlated case;
and if the prior probabilities for measuring each spin are equal, the pair is said to be in the singlet state.
The simplest possible bound particle pair capable of exhibiting the singlet state is positronium, which consists of an electron
and positron (antielectron) bound by their opposite electric charges. The electron and positron in positronium can also have identical
or parallel spin orientations, which results in an experimentally-distinct form of positronium with a spin 1 or triplet state.
Manipulating electron spin states refers to the process of controlling the direction of an electron's spin, which can be either "up" or
"down," to represent the two quantum states of a qubit, the fundamental unit of information in quantum computing; essentially,
by carefully altering the spin of an electron, researchers can encode and manipulate quantum information within a system.
Pure carbon materials such as graphene, fullerene and diamond can be used to build qubits.
High conductivity
Graphene's exceptional electrical conductivity allows for fast electron movement and this translates to faster processing
speeds in quantum computers.
Spintronics and Valleytronics:
Graphene exhibits unique spin and valley properties that can be harnessed to encode information in qubits, potentially leading to more
robust and error-resistant quantum computation.
Superconducting potential:
Researchers are actively exploring ways to create superconducting qubits using graphene, with the potential to achieve stable qubit
states at higher temperatures than current methods.
Multi-layer graphene structures:
By stacking multiple layers of graphene with specific twisting angles, scientists can engineer a material that exhibits superconductivity.
Quantum dots in graphene:
Our Team can create tiny regions within the graphene lattice where electrons can behave like quantum particles, allowing for the
manipulation of individual quantum states.
Controlling impurities:
Maintaining a high level of carbon purity in the graphene is crucial for achieving stable quantum states.
The ability to manipulate and control entanglement in carbon based materials like graphene and fullerenes opens up possibilities
for developing new quantum computing technologies.
The above demonstrates one of a pair of quantum 1/2 spin particles
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