Questions tagged [quantum-memory]

For questions about the theory and practical construction of dedicated quantum memory which is analogous to the memory in a normal computer, but consists of 'quantum state' (e.g. (partially) from qubits).

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How does quantum memory work using atoms?

I was trying to learn quantum memory and went through some papers, websites, etc. The current understanding I have (which I'm not sure is right) is this: Two photons are prepared together which are ...
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Simulating Read only QRAM (constructing an oracle) [closed]

In many algorithms an array that stores a classical data or quantum data is crucial. The QRAM (quantum random access memory) that stores classical data in the circuit has been done. My question ...
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Can a stored programming model be applied to a Quantum Computer?

A stored programming computer model is that where a central memory is used to store both instructions and data that they operate on. Basically all the classical computers of today that follow the von ...
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Are bucket-brigate (q)RAM architectures also advantageous in the classical case?

One of the main ideas introduced in Giovannetti et al. 2007 (0708.1879) is the so-called bucket-brigade (q)RAM architecture. The authors state (first paragraph, second column, first page, in v2) ...
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Entanglement transfer of spin-entangled triplet-pair states between flying qubits and stationary qubits

The context: We are in the solid state. After a photon absortion by a system with a singlet ground state, the system undergoes the spin-conserving fission of one spin singlet exciton into two spin ...
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What is the purpose of a quantum RAM in quantum algorithms?

I see many papers (e.g. Quantum principal component analysis) in which the existence of qRAM is necessary. What's the actual purpose of qRAM in quantum algorithms?
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How to store qubits while preserving Heisenberg's uncertainty principle?

I know that qubits are represented by quantum particles (for example photons) and that their state is given by one property (for example spin). My question is about the quantum memory: how are the ...
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Quantum memory assisting classical memory

Consider a classical computer, one making, say, a calculation involving a large amount of data. Would quantum memory allow it to store that information (in the short term) more efficiently, or better ...
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Can quantum computers handle 'big' data?

While there are many interesting questions that a computer can solve with barely any data (such as factorization, which requires "only" a single integer), most real-world applications, such as machine ...
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State of the art in quantum memory

Presently, how much information can a quantum computer store, in how many qubits? What restrictions are there and how does it vary across realizations (efficiency of data storage, ease of reading and ...
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What protocols have been proposed to implement quantum RAMs?

The crucial role of random access memories (RAMs) in the context of classical computation makes it natural to wonder how one can generalise such a concept to the quantum domain. Arguably the most ...