# Storing data in quantum spaces.

• pondzo
In summary: Landauer%27s_limitIn summary, the Landauer's limit states that the amount of information that can be stored in a given volume is proportional to the surface area of the sphere, rather than its volume. This is interesting! I'm not entirely sure how landauers limit applies to my question (since this principle applies to only a logically irriversible manipulation of data, which i don't think this is?), but the links provide some more information. I'm not sure if this is practically feasible, but it's an interesting concept.
pondzo
Would it be possible to store Data in a space smaller or equal to the plank length? And also does Data (or the storage of it) take up physical space and if so how much approximately?
Thanks, Michael.

pondzo said:
And also does Data (or the storage of it) take up physical space and if so how much approximately?

There is believed to be an upper bound on the amount of information you can store in a given volume: http://en.wikipedia.org/wiki/Bekenstein_bound

Interestingly, according to this bound the maximum amount of data that you can store in a given spherical region is proportional to the *surface area* of the sphere instead of its volume.

That is interesting! I had a look at the link and the equation involves the mass of the system, what do you think this would correspond to in my query?

UltrafastPED said:
Look up Landauer's limit and reconsider your question:
http://en.m.wikipedia.org/wiki/Landauer's_principle

There is a connection between information and entropy which must be taken into account.

I'm not entirely sure how landauers limit applies to my question (since this principle applies to only a logically irriversible manipulation of data , which i don't think this is?), could you please explain?

The_Duck said:
There is believed to be an upper bound on the amount of information you can store in a given volume: http://en.wikipedia.org/wiki/Bekenstein_bound

Using this inequality I calculated the minumum mass-energy of a system required to store one bit of information in a sphere of diameter the Planck length, to be 4.316*10^-9 joules. which corresponds to a stationary mass of 4.802*10^-9 Kg.

I have only minimal understanding of computing systems, the processes of storing information and the sort of system required to do so, But is this order of mass for a system practically feasible? (or could it be in the near future? - and i know the future&technology is a vague concept itself but...)

## 1. What is quantum data storage?

Quantum data storage is a method of storing data using quantum bits, or qubits, which can exist in multiple states at the same time. This allows for much larger amounts of data to be stored in a smaller space, making it a promising solution for the increasing need for data storage.

## 2. How does quantum data storage differ from traditional data storage?

Traditional data storage relies on the use of binary bits, which can only exist in two states (0 or 1). Quantum data storage uses qubits, which can exist in multiple states simultaneously, allowing for more efficient and larger data storage.

## 3. What are the advantages of storing data in quantum spaces?

Storing data in quantum spaces has several advantages, including higher storage capacity, faster data processing, and increased security. Qubits can hold significantly more data than traditional bits, and the ability to exist in multiple states at once allows for faster data processing. Additionally, quantum data storage is more secure as it is less susceptible to hacking attempts.

## 4. What are the challenges of quantum data storage?

One of the main challenges of quantum data storage is maintaining the stability of qubits. Any interference or disturbance can cause the qubits to lose their quantum state and result in data loss. Additionally, the technology for quantum data storage is still in its early stages and is not yet widely available.

## 5. How is quantum data storage being used in the scientific community?

Quantum data storage is being used in various scientific fields, such as quantum computing, quantum communication, and quantum sensing. It is also being studied as a potential solution for storing large amounts of data in space exploration and other advanced technologies.

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