Is spacetime a quantum error-correcting code?
... MERA tensor networks, which therefore also have entropy bounded above by the logarithm of the size of A (Swingle). In holographic codes, the Ryu-Takayanagi is exact in certain cases. ...
... MERA tensor networks, which therefore also have entropy bounded above by the logarithm of the size of A (Swingle). In holographic codes, the Ryu-Takayanagi is exact in certain cases. ...
A blueprint for building a quantum computer
... the architecture used can make the difference between an interesting proofof-concept device and an immediate threat to all RSA encryption. In developing a quantum computer architecture we have much to learn from classical computer architecture, but with a few important caveats. Foremost among these ...
... the architecture used can make the difference between an interesting proofof-concept device and an immediate threat to all RSA encryption. In developing a quantum computer architecture we have much to learn from classical computer architecture, but with a few important caveats. Foremost among these ...
IBM Josephson junction qubit
... --Write circuit equations of motion: these are equations of classical mechanics --Technical challenge: it is a classical mechanics with constraints; must find the “unconstrained” set of circuit variables --find a Hamiltonian/Lagrangian from which these classical equations of motion arise --then, qua ...
... --Write circuit equations of motion: these are equations of classical mechanics --Technical challenge: it is a classical mechanics with constraints; must find the “unconstrained” set of circuit variables --find a Hamiltonian/Lagrangian from which these classical equations of motion arise --then, qua ...
Seminar Report
... the total number of bits needed to specify the input to the problem, for example, the number of bits needed to encode the number we want to factorize. If the best algorithm we know for a particular problem has the execution time (viewed as a function of the size of the input) bounded by a polynomial ...
... the total number of bits needed to specify the input to the problem, for example, the number of bits needed to encode the number we want to factorize. If the best algorithm we know for a particular problem has the execution time (viewed as a function of the size of the input) bounded by a polynomial ...
PDF only
... Quantum computing becomes viable when a quantum state can be preserved from environmentally-induced error. If quantum bits (qubits) are sufficiently reliable, errors are sparse and quantum error correction (QEC)1–6 is capable of identifying and correcting them. Adding more qubits improves the preser ...
... Quantum computing becomes viable when a quantum state can be preserved from environmentally-induced error. If quantum bits (qubits) are sufficiently reliable, errors are sparse and quantum error correction (QEC)1–6 is capable of identifying and correcting them. Adding more qubits improves the preser ...
Quantum Error Correction
... Let us examine more closely the error syndrome for the classical repetition code. A correctly-encoded state 000 or 111 has the property that the first two bits have even parity (an even number of 1’s), and similarly for the 2nd and 3rd bits. A state with an error on one of the first two bits has odd ...
... Let us examine more closely the error syndrome for the classical repetition code. A correctly-encoded state 000 or 111 has the property that the first two bits have even parity (an even number of 1’s), and similarly for the 2nd and 3rd bits. A state with an error on one of the first two bits has odd ...
Entropy and Quantum Gravity arXiv:1504.00882v2 [gr
... and meaningful mathematical question. As for what those microscopic laws of physics are, we don’t need to say in detail to see how the proposal might work. All we need to assume is that there is an approximate quantum gravity theory valid for energies well below the Planck energy and that this can ...
... and meaningful mathematical question. As for what those microscopic laws of physics are, we don’t need to say in detail to see how the proposal might work. All we need to assume is that there is an approximate quantum gravity theory valid for energies well below the Planck energy and that this can ...
