Logic gates in excitonic single quantum dot qubits

In summary, the conversation discusses the search for physical realizations of universal logic operations in single-dot excitonic qubits. While phase rotations can be easily implemented, the literature search for CNOT and Hadamard gates has been unsuccessful. These gates have been found in spin state qubits or excitonic double-dot qubits, but excitons are often overlooked in the world of quantum computing. The question is raised if these logic gates have ever been implemented in this type of qubit, or if there have been Y&Z rotations where the phase gate is a rotation in X when modeled as a Bloch Sphere.
  • #1
scallen
3
0
I am searching for physical realizations of universal logic operations (phase rotation, CNOT, Hadamard) in single-dot excitionic qubits. Phase rotations are easy to implement with sinusoidal electric fields but my literature search for CNOT and Hadamard gates runs dry. I can find them in spin state qubits or excitonic double-dot qubits. It seems like excitons are the readheaded step-child in the world of quantum computing theses days. Have these logic gates ever been implemented in this particular type of qubit?
 
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  • #2
...Or if we model it as a Bloch Sphere have there been Y&Z rotations where the phase gate is a rotation in X?
 

1. What are logic gates in excitonic single quantum dot qubits?

Logic gates in excitonic single quantum dot qubits refer to the basic building blocks of quantum computing. They are physical devices that operate on qubits, which are the basic units of quantum information, to perform logical operations. These operations are used to manipulate and process information in quantum computers.

2. How do logic gates in excitonic single quantum dot qubits work?

Logic gates in excitonic single quantum dot qubits work by manipulating the quantum state of qubits. They use the principles of quantum mechanics, such as superposition and entanglement, to perform operations on qubits. These operations can be used to perform logical operations, such as AND, OR, and NOT, on quantum information.

3. What are the advantages of using excitonic single quantum dot qubits in logic gates?

Excitonic single quantum dot qubits offer several advantages in logic gates compared to other types of qubits. They have a longer coherence time, meaning they can retain their quantum state for a longer period of time. They also have a higher fidelity, meaning they are less susceptible to errors during operations. Additionally, they can be manipulated using electric fields, making them easier to control.

4. What are some potential applications of logic gates in excitonic single quantum dot qubits?

The use of logic gates in excitonic single quantum dot qubits has potential applications in quantum computing, quantum communication, and quantum sensing. They can also be used in the development of more advanced technologies, such as secure communication networks and high-precision sensors.

5. What are the current challenges in using logic gates in excitonic single quantum dot qubits?

One of the main challenges in using logic gates in excitonic single quantum dot qubits is the need for precise control over the qubits and their interactions. This requires advanced technologies and techniques to manipulate and measure single quantum dots. Additionally, there is still a need for further research and development to improve the performance and scalability of these qubits for practical applications.

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