Topological quantum memory
... decoherence time of stored qubits is at least 104 times longer than the time needed to execute one fundamental quantum gate,11 assuming that decoherence is the only source of error. This estimate of the accuracy threshold is obtained by analyzing the efficacy of a concatenated code, a hierarchy of c ...
... decoherence time of stored qubits is at least 104 times longer than the time needed to execute one fundamental quantum gate,11 assuming that decoherence is the only source of error. This estimate of the accuracy threshold is obtained by analyzing the efficacy of a concatenated code, a hierarchy of c ...
Genuine Fortuitousness
... an objective fact about the universe and must be treated as such. Copenhagen’s treatment of uncertainty stands in stark contrast to “hidden variable” theories, a series of other QM theories like Bohmian mechanics which treat uncertainty as the result of some unknown variable that has not been accoun ...
... an objective fact about the universe and must be treated as such. Copenhagen’s treatment of uncertainty stands in stark contrast to “hidden variable” theories, a series of other QM theories like Bohmian mechanics which treat uncertainty as the result of some unknown variable that has not been accoun ...
Quantum dynamics in strong fluctuating fields - Physik Uni
... correspond physically to a nonequilibrium noise influence. It has been shown theoretically that such a nonequilibrium non-Gaussian (e.g., two-state) noise can regulate the quantum transition rates by several orders of magnitude [62, 64–66]. Moreover, it may pump energy into the quantum system. This i ...
... correspond physically to a nonequilibrium noise influence. It has been shown theoretically that such a nonequilibrium non-Gaussian (e.g., two-state) noise can regulate the quantum transition rates by several orders of magnitude [62, 64–66]. Moreover, it may pump energy into the quantum system. This i ...
Effective Hamiltonian in the Problem of a
... introduced some time ago to describe the large superparamagnetic ”spin clusters” which are believed to exist in many disordered magnets at low temperature, such as Si : P near the metal-insulator transition [9], or ”giant magnetic polarons” [10]. Similar spin clusters exist in ”quantum spin glasses” ...
... introduced some time ago to describe the large superparamagnetic ”spin clusters” which are believed to exist in many disordered magnets at low temperature, such as Si : P near the metal-insulator transition [9], or ”giant magnetic polarons” [10]. Similar spin clusters exist in ”quantum spin glasses” ...
Strongly correlated quantum physics with cold atoms - Max
... the experimental findings on bulk 4 He remain controversial, optical lattice setups offer the advantages of high sample purity and experimental control to directly pin down a supersolid state via standard measurement techniques. In Chapter 2, we demonstrate theoretically a new route to supersolidity. ...
... the experimental findings on bulk 4 He remain controversial, optical lattice setups offer the advantages of high sample purity and experimental control to directly pin down a supersolid state via standard measurement techniques. In Chapter 2, we demonstrate theoretically a new route to supersolidity. ...
Spins in quantum dots: Hyperfine interaction, transport, and
... of an ideal (isotropic) exchange, as given in (1.1), the total spin is conserved while switching. However, to avoid leakage to higher orbital states during gate operation, the exchange coupling must be switched adiabatically. More precisely, τsw ≫ 1/ω0 ≈ 10−12 s, where ~ω0 ≈ 1 meV is the energy gap ...
... of an ideal (isotropic) exchange, as given in (1.1), the total spin is conserved while switching. However, to avoid leakage to higher orbital states during gate operation, the exchange coupling must be switched adiabatically. More precisely, τsw ≫ 1/ω0 ≈ 10−12 s, where ~ω0 ≈ 1 meV is the energy gap ...
Quantum Physics
... the coin lands, etc. permit us in principle to predict the result. Some physicists4 have suggested that the probabilistic nature of quantum mechanics has an analogous origin: if we had access to additional variables which at present we do not know, the so-called hidden variables, we would be able to ...
... the coin lands, etc. permit us in principle to predict the result. Some physicists4 have suggested that the probabilistic nature of quantum mechanics has an analogous origin: if we had access to additional variables which at present we do not know, the so-called hidden variables, we would be able to ...
Spin Properties in InAs/GaAs Quantum Dot based Nanostructures
... I would like to express my thanks to Prof. Weimin Chen and Prof. Irina Buyanova for giving me the opportunity to work in their group. I want to thank you for all invaluable, stimulating discussions and for always finding some light in the darkest maze of data. I am grateful to Arne Eklund and Roger ...
... I would like to express my thanks to Prof. Weimin Chen and Prof. Irina Buyanova for giving me the opportunity to work in their group. I want to thank you for all invaluable, stimulating discussions and for always finding some light in the darkest maze of data. I am grateful to Arne Eklund and Roger ...
- Philsci
... In a nutshell: an uncountable infinity of minds is associated with each brain state and with each measurement the set of minds splits in as many subsets as are the possible results of the measurement. The proportion of minds which ends up in a certain state after the measurement is equal to the squa ...
... In a nutshell: an uncountable infinity of minds is associated with each brain state and with each measurement the set of minds splits in as many subsets as are the possible results of the measurement. The proportion of minds which ends up in a certain state after the measurement is equal to the squa ...
