Simulation of Quantum Computation with Wolfram
... Quantum computation and quantum information is a rapidly developing research area of modern science and technology. Quantum computers are to be able to perform certain computational tasks much more efficiently than classical computers. At the same time a realistic quantum computer is still not availab ...
... Quantum computation and quantum information is a rapidly developing research area of modern science and technology. Quantum computers are to be able to perform certain computational tasks much more efficiently than classical computers. At the same time a realistic quantum computer is still not availab ...
学术报告
... quantum phase transitions based on its leading term, i.e. the fidelity susceptibility. The fidelity susceptibility denotes the adiabatic leading response of the ground state to the driving parameter. Differ from traditionally approach based on the ground-state energy, the fidelity susceptibility sho ...
... quantum phase transitions based on its leading term, i.e. the fidelity susceptibility. The fidelity susceptibility denotes the adiabatic leading response of the ground state to the driving parameter. Differ from traditionally approach based on the ground-state energy, the fidelity susceptibility sho ...
The Learnability of Quantum States
... Our Basic Result: Suppose there were a polynomialtime classical randomized algorithm that took as input a description of a quantum optics experiment, and output a sample from the correct final distribution over n-photon states. Then the polynomial hierarchy would collapse. Motivation: Compared to (s ...
... Our Basic Result: Suppose there were a polynomialtime classical randomized algorithm that took as input a description of a quantum optics experiment, and output a sample from the correct final distribution over n-photon states. Then the polynomial hierarchy would collapse. Motivation: Compared to (s ...
Mott insulators, Noise correlations and Coherent Spin Dynamics in Optical Lattices
... Similar to Richard Feynman’s original proposal for a quantum computer as a simulator for the quantum dynamics of other physical systems, neutral atoms in optical lattices already today offer powerful possibilities for simulating fundamental Hamiltonians of condensed matter physics. In fact, many nov ...
... Similar to Richard Feynman’s original proposal for a quantum computer as a simulator for the quantum dynamics of other physical systems, neutral atoms in optical lattices already today offer powerful possibilities for simulating fundamental Hamiltonians of condensed matter physics. In fact, many nov ...
Detection of entanglement and of features of quantum evolution with
... systems are called complementary if they are such that, if one knows the value of one property, all possible values of the other property are equiprobable. We will first provide an interpretation of entanglement in composite systems based on classical correlations between measurement outcomes of com ...
... systems are called complementary if they are such that, if one knows the value of one property, all possible values of the other property are equiprobable. We will first provide an interpretation of entanglement in composite systems based on classical correlations between measurement outcomes of com ...
QUANTUM DOTS
... quantum dots rather than by spectroscopic manipulation as in other models. The tunnel barrier between dots can be high or low by setting a gate voltage. In the case of the high barrier potential the tunnelling is forbidden between dots (no evolution in time). In the low barrier potential spins will ...
... quantum dots rather than by spectroscopic manipulation as in other models. The tunnel barrier between dots can be high or low by setting a gate voltage. In the case of the high barrier potential the tunnelling is forbidden between dots (no evolution in time). In the low barrier potential spins will ...
Holonomic quantum computation with neutral atoms
... [1] is a dynamical one: in order to manipulate the quantum state of systems encoding information, local interactions between low dimensional subsystems (qubits) are switched on and off in such a way to enact a sequence of quantum gates. On the other hand, ever since the discovery of the Berry’s phase ...
... [1] is a dynamical one: in order to manipulate the quantum state of systems encoding information, local interactions between low dimensional subsystems (qubits) are switched on and off in such a way to enact a sequence of quantum gates. On the other hand, ever since the discovery of the Berry’s phase ...
II. Units of Measurement
... Heisenberg’s Uncertainty Principle There is a limit to just how precisely we can know both the position and velocity of a particle at a given time. ...
... Heisenberg’s Uncertainty Principle There is a limit to just how precisely we can know both the position and velocity of a particle at a given time. ...
Baby-Quiz
... 2. Suppose you were a nineteenth-century scientist who had just discovered a new phenomenon known as Zeta rays. What experiment could you perform to define if Zeta rays are charged particles or e/m waves? Could this experiment distinguish between neutral particles and an e/m wave? 3. If a metal surf ...
... 2. Suppose you were a nineteenth-century scientist who had just discovered a new phenomenon known as Zeta rays. What experiment could you perform to define if Zeta rays are charged particles or e/m waves? Could this experiment distinguish between neutral particles and an e/m wave? 3. If a metal surf ...
Quantum Problems 1. Consider a quantum system whose state at
... 1. Consider a quantum system whose state at time t1 is given by |Ψ(t1 )i = √12 (|ψ1 i + |ψ2 i), where |ψ1 i and |ψ2 i are energy eigenstates with eigenvalues E1 and E2 respectively. (E1 6= E2 .) (a) Calculate the uncertainty ∆E of the system, as well as the first time t2 > t1 at which |Ψ(t2 )i becom ...
... 1. Consider a quantum system whose state at time t1 is given by |Ψ(t1 )i = √12 (|ψ1 i + |ψ2 i), where |ψ1 i and |ψ2 i are energy eigenstates with eigenvalues E1 and E2 respectively. (E1 6= E2 .) (a) Calculate the uncertainty ∆E of the system, as well as the first time t2 > t1 at which |Ψ(t2 )i becom ...
Special Issue on Lie Group Representation Theory, Coherent States,
... is an essential resource when facing those two fundamental problems, either as a valuable (mathematical) classification tool, a (gauge) guiding principle, or an essential building block, when the group structure is taken to the ultimate consequences. Although the representation theory of finitedimen ...
... is an essential resource when facing those two fundamental problems, either as a valuable (mathematical) classification tool, a (gauge) guiding principle, or an essential building block, when the group structure is taken to the ultimate consequences. Although the representation theory of finitedimen ...
Possible Topics for the Final Project Taken with slight modification
... 17. Supersymmetric quantum mechanics. 18. The Zeeman effect in weak, intermediate and strong magnetic fields. 19. The Lamb shift in hydrogen — evidence that relativistic quantum mechanics must be replaced by quantum field theory. 20. The non-relativistic quark model of the proton, neutron and relate ...
... 17. Supersymmetric quantum mechanics. 18. The Zeeman effect in weak, intermediate and strong magnetic fields. 19. The Lamb shift in hydrogen — evidence that relativistic quantum mechanics must be replaced by quantum field theory. 20. The non-relativistic quark model of the proton, neutron and relate ...
Quantum Computing at the Speed of Light
... deterministic control of distant, solid state qubits encoded in excitons in semiconductor quantum dots [1-3]. In these experiments, we have employed a technique called optimal quantum control (OQC), in which one tailors the phase and amplitude of the control Hamiltonian through femtosecond pulse sha ...
... deterministic control of distant, solid state qubits encoded in excitons in semiconductor quantum dots [1-3]. In these experiments, we have employed a technique called optimal quantum control (OQC), in which one tailors the phase and amplitude of the control Hamiltonian through femtosecond pulse sha ...