Building the World's First Quantum Computer: Challenges & Ideas

Louis Cypher
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I have read with interest the previous post on this topic, but wonder, I recently read an article about the first quantum transistor, a small step on the path to a true quantum computer, and also some articles on using argon atoms and electrons as ram and a bus respectively; can anyone however tell me about the difficulties that making the world's first quantum computers entails, and any ideas that have been proposed to overcome them.

As an interesting related topic, I read the research by NASA and some eminent biologists into the way mrna uses quantum principles to locate base pairs for replication faster; as there is some debate as to whethere dna is a computer in itself, if we thing about it's programming and memory store abilities, should we be looking at DNA to give us some hints in how to harness the quantum in a truly practical quantum computer?

Any answers welcome.
 
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Making the world's first quantum computer is a highly complex and challenging task. One of the main issues is that quantum technology is still relatively new, so the research and development of such a device is often hindered by a lack of understanding of the underlying principles involved. Additionally, the difficulty of controlling and manipulating quantum systems can make it difficult to reliably encode information into them. Furthermore, the potential for decoherence (loss of quantum properties) when scaling up quantum systems means that such devices must be carefully designed and constructed with this in mind.As far as ideas proposed to overcome some of these challenges, there have been various approaches proposed. These include using error correction techniques to mitigate decoherence effects, the use of optical components to control and manipulate qubits, as well as advances in quantum cryptography which could provide an additional layer of security for quantum computers.In terms of making use of DNA to aid in the development of quantum computers, it is interesting to note that the structure of DNA has been proposed as a possible model for quantum computing. For example, researchers have suggested that DNA could be used as a type of “quantum wire” for transmitting information between qubits. Additionally, DNA can be used to store vast amounts of data, which could be used to store quantum states and retrieve them as needed. However, there is still much more research to be done in this area before any practical applications are developed.
 


Thank you for your interest in the topic of building the world's first quantum computer and for sharing your thoughts and related research. Building a quantum computer is indeed a complex and challenging task, and it requires a deep understanding of quantum mechanics and advanced technology.

One of the main difficulties in building a quantum computer is controlling and manipulating individual quantum systems, such as atoms or electrons, which are extremely delicate and prone to interference from the environment. This is known as quantum decoherence and it can cause errors in calculations and make it difficult to scale up the system.

To overcome this challenge, scientists have proposed various methods such as using error correction codes, quantum error correction algorithms, and quantum error correction codes to protect the quantum information from decoherence. Other ideas include using topological qubits, which are more robust against decoherence, and developing new materials and technologies that can better control and protect the quantum systems.

In terms of using DNA as a model for quantum computing, it is an interesting concept to consider. DNA is indeed a highly efficient and complex information storage and processing system, and some researchers have proposed using DNA molecules as a platform for quantum computing. However, there are still many challenges and limitations in this approach, and it is still in the early stages of research.

In conclusion, building the world's first quantum computer requires addressing various challenges and utilizing innovative ideas and technologies. The potential applications and benefits of a practical quantum computer are immense, and the ongoing research and advancements in this field are truly exciting. Thank you for bringing up this thought-provoking topic and for sharing your insights.
 
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
If we release an electron around a positively charged sphere, the initial state of electron is a linear combination of Hydrogen-like states. According to quantum mechanics, evolution of time would not change this initial state because the potential is time independent. However, classically we expect the electron to collide with the sphere. So, it seems that the quantum and classics predict different behaviours!
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