Quantum-enhanced measurements: beating the standard quantum
... state is fed into the device and a collective measurement is performed on the other half and on the device’s output [24, 25]. As in the case discussed above, the quantum correlations between the components of the entangled state increase the precision and hence reduce the number of measurements requ ...
... state is fed into the device and a collective measurement is performed on the other half and on the device’s output [24, 25]. As in the case discussed above, the quantum correlations between the components of the entangled state increase the precision and hence reduce the number of measurements requ ...
Analysis of a Quantum Error Correcting Code using Quantum
... Our model of a quantum error correction system consists of three processes: Alice, Bob and Noise. Alice wants to send a qubit to Bob over a noisy channel, represented by Noise. She uses a simple error correcting code based on threefold repetition [13, Chapter 10]. This code is able to correct a sing ...
... Our model of a quantum error correction system consists of three processes: Alice, Bob and Noise. Alice wants to send a qubit to Bob over a noisy channel, represented by Noise. She uses a simple error correcting code based on threefold repetition [13, Chapter 10]. This code is able to correct a sing ...
Quantum supergroups and canonical bases Sean Clark University of Virginia Dissertation Defense
... Most of Kashiwara’s arguments generalize (with extra signs). Kashiwara’s construction of G requires ρ(L(∞)) ⊂ L(∞) where ρ is an anti-automorphism of U− . Super signs cause non-positivity problems ⇒ usual proof fails. New idea: a twistor (from work with Fan, Li, Wang [CFLW]). ...
... Most of Kashiwara’s arguments generalize (with extra signs). Kashiwara’s construction of G requires ρ(L(∞)) ⊂ L(∞) where ρ is an anti-automorphism of U− . Super signs cause non-positivity problems ⇒ usual proof fails. New idea: a twistor (from work with Fan, Li, Wang [CFLW]). ...
Superconducting Circuits and Quantum Computation
... Superconducting circuits are being used as components for quantum computing and as model systems for non-linear dynamics. Quantum computers are devices that store information on quantum variables and process that information by making those variables interact in a way that preserves quantum coherenc ...
... Superconducting circuits are being used as components for quantum computing and as model systems for non-linear dynamics. Quantum computers are devices that store information on quantum variables and process that information by making those variables interact in a way that preserves quantum coherenc ...
Are there basic laws of quantum information processing?
... two ways we are in position to interpret the result of the previous section. The two equivalent statements 1 and 2′ are formulations of the same restriction for quantum information processing in terms of quantum real and virtual information respectively. Following the proof, one can see that the no- ...
... two ways we are in position to interpret the result of the previous section. The two equivalent statements 1 and 2′ are formulations of the same restriction for quantum information processing in terms of quantum real and virtual information respectively. Following the proof, one can see that the no- ...
Understanding the destruction of nth
... function 关1兴. However, in quantum mechanics, this first-order coherence phenomenon does not sound very marvellous since the same circumstance can also occur in a classical case, such as the optical interference in the above mentioned Young’s double-slit experiment. In fact, by first-order correlatio ...
... function 关1兴. However, in quantum mechanics, this first-order coherence phenomenon does not sound very marvellous since the same circumstance can also occur in a classical case, such as the optical interference in the above mentioned Young’s double-slit experiment. In fact, by first-order correlatio ...
Why Quantum Computing? - Quantum Physics and Quantum
... The Principal of Superposition states if a quantum system can be measured to be in one of a number of states then it can also exist in a blend of all its states simultaneously RESULT: An n-bit qubit register can be in all 2n states at once ...
... The Principal of Superposition states if a quantum system can be measured to be in one of a number of states then it can also exist in a blend of all its states simultaneously RESULT: An n-bit qubit register can be in all 2n states at once ...
