Spintronics and Quantum Dots for Quantum Computing and
... a growing list of quantum tasks [9,10] such as cryptography, error correcting schemes, quantum teleportation, etc. that have indicated even more the desirability of experimental implementations of quantum computing. In a quantum computer each quantum bit (qubit) is allowed to be in any state of a qu ...
... a growing list of quantum tasks [9,10] such as cryptography, error correcting schemes, quantum teleportation, etc. that have indicated even more the desirability of experimental implementations of quantum computing. In a quantum computer each quantum bit (qubit) is allowed to be in any state of a qu ...
Phys. Rev. B 90, 140503(R) - Microelectronics Group
... Plotting these rates as a function of δ detuning [Fig. 3(b)], we see that S→ is flat in the region of δ = 0, whereas for larger values of δ it increases exponentially until our measurement is bandwidth limited. The rate of the S → (1,1) process is expected to be constant since it depends only on th ...
... Plotting these rates as a function of δ detuning [Fig. 3(b)], we see that S→ is flat in the region of δ = 0, whereas for larger values of δ it increases exponentially until our measurement is bandwidth limited. The rate of the S → (1,1) process is expected to be constant since it depends only on th ...
Powerpoint format
... 1. The system is put into a superposition of all possible states, each weighted by its probability amplitude (= a complex number ci) E.g. Qubits for 2 electrons = c1 |00> + c2 |01> + c3 |10> + c4 |11> 2. The system evolves according to quantum principles: 1. Unitary matrix operation: describes how s ...
... 1. The system is put into a superposition of all possible states, each weighted by its probability amplitude (= a complex number ci) E.g. Qubits for 2 electrons = c1 |00> + c2 |01> + c3 |10> + c4 |11> 2. The system evolves according to quantum principles: 1. Unitary matrix operation: describes how s ...
Genetic Programming for Quantum Computers - Faculty
... qubit (controller) and one output qubit (controlled). CNOT flips the state with respect to its output wherever its input is 1. By making the condition on this flipping more complex, possibly using more input qubits, we can construct analogous unitary transforms for any classical boolean function. Fo ...
... qubit (controller) and one output qubit (controlled). CNOT flips the state with respect to its output wherever its input is 1. By making the condition on this flipping more complex, possibly using more input qubits, we can construct analogous unitary transforms for any classical boolean function. Fo ...
Phys. Rev. Lett. 108, 100501 - APS Link Manager
... FIG. 1 (color online). Setup for the proposed gate. (a) Depending on the state of the qubits A and B, the quantum bus (atoms shown as black dots) in the crystalline phase will possess a different ground state, where the distance between two excitations aR is altered. This intuitively corresponds to ...
... FIG. 1 (color online). Setup for the proposed gate. (a) Depending on the state of the qubits A and B, the quantum bus (atoms shown as black dots) in the crystalline phase will possess a different ground state, where the distance between two excitations aR is altered. This intuitively corresponds to ...
The Church-Turing thesis in a quantum world
... Quantum complexity theory [Bernstein and Vazirani ’97] Just as the theory of computability has its foundations in the Church-Turing thesis, computational complexity rests on a modern strengthening of this thesis, which asserts that any “reasonable” model of computation can be efficiently simulated o ...
... Quantum complexity theory [Bernstein and Vazirani ’97] Just as the theory of computability has its foundations in the Church-Turing thesis, computational complexity rests on a modern strengthening of this thesis, which asserts that any “reasonable” model of computation can be efficiently simulated o ...
Quantum Chaos and Quantum Information
... In the last lecture we will present some recent developments on the connection between dynamical systems and quantum computation. In particular, one can simulate chaotic classical and quantum dynamical systems efficiently by a quantum computer. I will present an algorithm for simulating quantum kick ...
... In the last lecture we will present some recent developments on the connection between dynamical systems and quantum computation. In particular, one can simulate chaotic classical and quantum dynamical systems efficiently by a quantum computer. I will present an algorithm for simulating quantum kick ...
Fault-tolerant quantum computation
... A subsystem code is really the same thing as a standard quantum code, but where we don’t use some of the k qubits encoded in the code block. These unused qubits are called “gauge qubits” --- we don’t care about their quantum state and we don’t have to correct their errors. Choosing not to correct th ...
... A subsystem code is really the same thing as a standard quantum code, but where we don’t use some of the k qubits encoded in the code block. These unused qubits are called “gauge qubits” --- we don’t care about their quantum state and we don’t have to correct their errors. Choosing not to correct th ...
Imaging single photons in non-separable states of polarization and spatial mode
... of light, which is predicted by quantum mechanics, but which also shows an aspect of the complexity of a single quantum of light not seen before. Light has a well established and sound description in the classical domain, expressed in terms of electromagnetic waves that consist of electric and magne ...
... of light, which is predicted by quantum mechanics, but which also shows an aspect of the complexity of a single quantum of light not seen before. Light has a well established and sound description in the classical domain, expressed in terms of electromagnetic waves that consist of electric and magne ...