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 ...
REDUCED AND EXTENDED WEAK COUPLING LIMIT
... quantum Langevin dynamics equals i[Z, ·] where Z is a self-adjoint operator that does not look like a physically realistic Hamiltonian. In particular, it is unbounded from both below and above. Thus one can question the physical relevance of this construction. It turns out, however, that one can ext ...
... quantum Langevin dynamics equals i[Z, ·] where Z is a self-adjoint operator that does not look like a physically realistic Hamiltonian. In particular, it is unbounded from both below and above. Thus one can question the physical relevance of this construction. It turns out, however, that one can ext ...
Quantum tomography via compressed sensing: error bounds, sample complexity and... estimators
... to be sound even if the true state ρ is not approximately low rank. Our extension of DFE may be of more general interest, since it can be used to efficiently certify any estimate ρˆ regardless of whether it was obtained using compressed sensing or not, as long as the rank r of the estimate is small ...
... to be sound even if the true state ρ is not approximately low rank. Our extension of DFE may be of more general interest, since it can be used to efficiently certify any estimate ρˆ regardless of whether it was obtained using compressed sensing or not, as long as the rank r of the estimate is small ...
Quantum Coherence in Biological Systems
... Chapter 1 gives a general introduction to quantum biology. I summarize key features of quantum effects and point out how they could matter in biological systems. Chapter 2 deals with the avian compass, where spin coherences play a fundamental role. The experimental evidence on how weak oscillating f ...
... Chapter 1 gives a general introduction to quantum biology. I summarize key features of quantum effects and point out how they could matter in biological systems. Chapter 2 deals with the avian compass, where spin coherences play a fundamental role. The experimental evidence on how weak oscillating f ...
Twenty years of the Weyl anomaly
... displayed by classical massless-field systems in interaction with gravity, first proposed by Hermann Weyl in 1918 [7-91, no longer survives in the quantum theory! We rushed off a paper [IO] to Nuovo Cimento (How times have changed!). I was also able to announce the result at the first Oxford Quantum ...
... displayed by classical massless-field systems in interaction with gravity, first proposed by Hermann Weyl in 1918 [7-91, no longer survives in the quantum theory! We rushed off a paper [IO] to Nuovo Cimento (How times have changed!). I was also able to announce the result at the first Oxford Quantum ...
Abstract Experiments demonstrating entanglement swapping have
... Encyclopedia article on the topic, Berkovitz defines action at a distance as: a phenomenon in which a change in intrinsic properties of one system induces a change in the intrinsic properties of a distant system without there being a process that carries this influence contiguously in space and tim ...
... Encyclopedia article on the topic, Berkovitz defines action at a distance as: a phenomenon in which a change in intrinsic properties of one system induces a change in the intrinsic properties of a distant system without there being a process that carries this influence contiguously in space and tim ...
Quantum Error Correction (QEC) - ETH E
... so called universal gates or even from one single (e.g. NAND). This is not surprising, as the truth table of a classical gate has finite combinations of outputs. This is very important for hardware construction. If we are able to implement such a set of universal gates we can compute what ever we wa ...
... so called universal gates or even from one single (e.g. NAND). This is not surprising, as the truth table of a classical gate has finite combinations of outputs. This is very important for hardware construction. If we are able to implement such a set of universal gates we can compute what ever we wa ...
5.3 Atomic Emission Spectra and the Quantum Mechanical Model
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
5.3 Atomic Emission Spectra and the Quantum Mechanical Model
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
... Today, the wavelike properties of beams of electrons are useful in viewing objects that cannot be viewed with an optical microscope. • The electrons in an electron microscope have much smaller wavelengths than visible light. • These smaller wavelengths allow a much clearer enlarged image of a very s ...
Local Reduction in Physics - PhilSci
... I do not attach my usage to any specific account of reduction - e.g., Nagelian, limit-based, New Wave, functionalist. Rather, I use it to designate a certain general concept that, I take it, all, or most, of the many specific accounts aim to make more precise. “Reduction,” then, is taken to designa ...
... I do not attach my usage to any specific account of reduction - e.g., Nagelian, limit-based, New Wave, functionalist. Rather, I use it to designate a certain general concept that, I take it, all, or most, of the many specific accounts aim to make more precise. “Reduction,” then, is taken to designa ...
Nowling, Sean Robert - 2007
... fields, and chiral fermions. In fact, one may view the infinite set of higher string modes and effective couplings as providing the infinite number of terms necessary to define the nonrenormalizable quantum field theory of ”general relativity.” All this has led people to label string theory as a ”th ...
... fields, and chiral fermions. In fact, one may view the infinite set of higher string modes and effective couplings as providing the infinite number of terms necessary to define the nonrenormalizable quantum field theory of ”general relativity.” All this has led people to label string theory as a ”th ...
2012) all (F I
... Mon 11 Feb Second order degenerate time-independent perturbation theory Wed 13 Feb Quiz 3; Application to hydrogen-like atoms: The relativistic kinetic energy shift Thu 14 Feb Application to hydrogen-like atoms: The spin-orbit interaction, Lande’s rule, and the sodium atom Tue 19 Feb Application to ...
... Mon 11 Feb Second order degenerate time-independent perturbation theory Wed 13 Feb Quiz 3; Application to hydrogen-like atoms: The relativistic kinetic energy shift Thu 14 Feb Application to hydrogen-like atoms: The spin-orbit interaction, Lande’s rule, and the sodium atom Tue 19 Feb Application to ...
The statistical interpretation according to Born and Heisenberg
... are very different. The idea of a ‘definitive’ version of the statistical interpretation merging elements from Born’s and Heisenberg’s work is hardly mentioned in the book. Furthermore, the presentation in the book is uncommittal about the views on collapse and on the status of the wave function he ...
... are very different. The idea of a ‘definitive’ version of the statistical interpretation merging elements from Born’s and Heisenberg’s work is hardly mentioned in the book. Furthermore, the presentation in the book is uncommittal about the views on collapse and on the status of the wave function he ...
