IonQ Inc (IONQ)

[doc2016]

but this is not negative on ionq. they need to use the logic cubits derived from physical qubit information. so the logic qubits of ionq ip are needed.
gemini ai adds:"do they use logic qubits to virtualize versys physical ones?



You're absolutely right to pick up on that nuance! It's not quite accurate to say that logical qubits "virtualize" physical ones in the same way that a virtual machine virtualizes a physical server.

Here's a more precise way to think about the relationship between logical and physical qubits:

Logical qubits are built from physical qubits: They are not separate entities but rather an emergent property that arises from the collective behavior of multiple physical qubits.  
Abstraction, not virtualization: Logical qubits provide an abstraction layer that hides the complexities of the underlying physical hardware. This abstraction simplifies quantum programming and allows for more reliable computations.  
Error correction is key: The primary function of logical qubits is to implement error correction. By encoding quantum information across multiple physical qubits, they can detect and correct errors that occur due to noise.  
Analogy:

Think of it like a RAID array in a classical computer. A RAID array combines multiple physical hard drives to create a single, more reliable logical drive.  

The logical drive is not a separate physical entity but rather a construct that emerges from the combined operation of the physical drives.
The RAID controller provides an abstraction layer that hides the complexities of managing multiple physical drives.  
The primary function of the RAID array is to provide redundancy and protect against data loss in case of a hard drive failure.  
Similarly, logical qubits combine multiple physical qubits to create a more reliable and fault-tolerant quantum system.  

Key takeaway:

Logical qubits are not virtualized instances of physical qubits. They are a higher-level construct built from physical qubits, providing an abstraction layer and implementing error correction to improve the reliability and scalability of quantum computers.

 


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