L17-20
... suggests how we should think about the indices j and k that are summed over in the Kraus decomposition of Aα . They represent information that is potentially available to us, but that we don’t have. Indeed, we can always imagine that there is a more capable agent than ourselves, who has two kinds of ...
... suggests how we should think about the indices j and k that are summed over in the Kraus decomposition of Aα . They represent information that is potentially available to us, but that we don’t have. Indeed, we can always imagine that there is a more capable agent than ourselves, who has two kinds of ...
Public Keys and Private Keys Quantum Cryptography
... Quantum cryptography and classical cryptography essentially deal with the same tasks, such as, just to mention a few, private communication, message authentication, zero knowledge proofs etc. The big difference is that the communication is done using qubits instead of classical bits. Due to the basi ...
... Quantum cryptography and classical cryptography essentially deal with the same tasks, such as, just to mention a few, private communication, message authentication, zero knowledge proofs etc. The big difference is that the communication is done using qubits instead of classical bits. Due to the basi ...
Closed and Open String Theories in Non-Critical Backgrounds
... 1. What is this dissertation about? This dissertation is an investigation of a few related topics in the quantum theory of one-dimensional objects - strings - living in certain spacetimes having the feature that the strength of the string interactions - the string coupling - varies as a function of ...
... 1. What is this dissertation about? This dissertation is an investigation of a few related topics in the quantum theory of one-dimensional objects - strings - living in certain spacetimes having the feature that the strength of the string interactions - the string coupling - varies as a function of ...
DECOHERENCE AND DYNAMICAL DECOUPLING IN SOLID-STATE SPIN QUBITS Wayne Martin Witzel
... I appreciate help that I have received from many people in order to accomplish this work. First of all, the Condensed Matter Theory Center (CMTC) has been an enriching environment for my graduate research. I have asked innumerable questions, from mundane to profound, of present and past CMTC post-do ...
... I appreciate help that I have received from many people in order to accomplish this work. First of all, the Condensed Matter Theory Center (CMTC) has been an enriching environment for my graduate research. I have asked innumerable questions, from mundane to profound, of present and past CMTC post-do ...
PDF - at www.arxiv.org.
... restricts the number of dynamics that are accessible and as a consequence the correlations that can be generated. On the other hand, the extraction of these correlations from the system is generally nontrivial, in particular, time-correlation functions are known to be demanding to extract due to th ...
... restricts the number of dynamics that are accessible and as a consequence the correlations that can be generated. On the other hand, the extraction of these correlations from the system is generally nontrivial, in particular, time-correlation functions are known to be demanding to extract due to th ...
Spin-orbit coupling effects in two
... In the last thirty years, we have seen the evolution and the development of the semiconductor devices and large scale applications to realize computational instruments. The Moore’s law [1], announced around 1970, asserts that our technology allows to double the number of transistors in electronic ci ...
... In the last thirty years, we have seen the evolution and the development of the semiconductor devices and large scale applications to realize computational instruments. The Moore’s law [1], announced around 1970, asserts that our technology allows to double the number of transistors in electronic ci ...
Knots, trees, and fields: common ground between physics and
... One main theme of this thesis is a connection between mathematical physics (in particular, the three-dimensional topological quantum field theory known as Chern-Simons theory) and three-dimensional topology. This connection arises because the partition function of Chern-Simons theory provides an inv ...
... One main theme of this thesis is a connection between mathematical physics (in particular, the three-dimensional topological quantum field theory known as Chern-Simons theory) and three-dimensional topology. This connection arises because the partition function of Chern-Simons theory provides an inv ...
HBNI Th65 - The Institute of Mathematical Sciences
... A unitary operator U effects the following transformation ρ → ρ = U ρ U † , ρ and ρ ∈ Λ(HS ). But if the system is in interaction with its environment, then the evolutions of the system of interest resulting from unitary evolutions of the composite are more general, but nevertheless described by lin ...
... A unitary operator U effects the following transformation ρ → ρ = U ρ U † , ρ and ρ ∈ Λ(HS ). But if the system is in interaction with its environment, then the evolutions of the system of interest resulting from unitary evolutions of the composite are more general, but nevertheless described by lin ...
2-dimensional “particle-in-a-box” problems
... harmonically bound). We can therefore regard (18) to be a direct implication of the Feynman formalism, in its simplest manifestation. During the winter of / Born and Einstein engaged in vigorous debate concerning the statistical interpretation of quantum mechanics. Record of that debate—in whi ...
... harmonically bound). We can therefore regard (18) to be a direct implication of the Feynman formalism, in its simplest manifestation. During the winter of / Born and Einstein engaged in vigorous debate concerning the statistical interpretation of quantum mechanics. Record of that debate—in whi ...
Squeezed light
... functions of the position- and momentum-squeezed vacuum states, respectively. The squeezing feature becomes apparent when these Wigner functions are compared with that of the vacuum state [Fig. 1(a)]. Figure 1(e,f) shows squeezed coherent states, which are analogous to the squeezed vacuum except tha ...
... functions of the position- and momentum-squeezed vacuum states, respectively. The squeezing feature becomes apparent when these Wigner functions are compared with that of the vacuum state [Fig. 1(a)]. Figure 1(e,f) shows squeezed coherent states, which are analogous to the squeezed vacuum except tha ...
Spectroscopy - Metameso.org
... Studies the energy/mass spectrum of hadrons according to spin, parity, and other particle properties. Baryon spectroscopy and meson spectroscopy are both types of ...
... Studies the energy/mass spectrum of hadrons according to spin, parity, and other particle properties. Baryon spectroscopy and meson spectroscopy are both types of ...
Limits on Efficient Computation in the Physical World
... More than a speculative technology, quantum computing seems to challenge our most basic intuitions about how the physical world should behave. In this thesis I show that, while some intuitions from classical computer science must be jettisoned in the light of modern physics, many others emerge nearl ...
... More than a speculative technology, quantum computing seems to challenge our most basic intuitions about how the physical world should behave. In this thesis I show that, while some intuitions from classical computer science must be jettisoned in the light of modern physics, many others emerge nearl ...
quantum computing for computer scientists
... vectors, which is critical for quantum computing. Ternary logic is different from traditional Boolean algebra (states of 0/1) because the latter has no third state, and hence confounds the states “the opposite of one” and “nothing”. Since addition is commutative (a + b = b + a) but subtraction is no ...
... vectors, which is critical for quantum computing. Ternary logic is different from traditional Boolean algebra (states of 0/1) because the latter has no third state, and hence confounds the states “the opposite of one” and “nothing”. Since addition is commutative (a + b = b + a) but subtraction is no ...
Transformations of Entangled Mixed States of Two Qubits
... quantum correlations. Especially, it started with the criticism of Einstein, Podolsky, and Rosen on the Copenhagen interpretation of quantum mechanics[1] in 1935. In 1964, J. S. Bell has shown that entangled states violate some inequalities, which are called as Bell inequalities, which test the non- ...
... quantum correlations. Especially, it started with the criticism of Einstein, Podolsky, and Rosen on the Copenhagen interpretation of quantum mechanics[1] in 1935. In 1964, J. S. Bell has shown that entangled states violate some inequalities, which are called as Bell inequalities, which test the non- ...
using standard syste - the Max Planck Institute for the Physics of
... self-consistent-field method shortly after the new quantum theory was established. They can be handled to such accuracy today that they are used for highprecision measurements and calculations to improve on the fundamental physical constants. Doubly excited resonant states could not, on the other ha ...
... self-consistent-field method shortly after the new quantum theory was established. They can be handled to such accuracy today that they are used for highprecision measurements and calculations to improve on the fundamental physical constants. Doubly excited resonant states could not, on the other ha ...
New Class of Quantum Error-Correcting Codes for a Bosonic Mode
... error rate is N times faster than for a single qubit. Thus, the quantum error-correction protocol must overcome this factor of N in order to reach the break-even point. If the errors are highly correlated, e.g., in the case of uniform magnetic field fluctuations in an ion trap, there may exist a dec ...
... error rate is N times faster than for a single qubit. Thus, the quantum error-correction protocol must overcome this factor of N in order to reach the break-even point. If the errors are highly correlated, e.g., in the case of uniform magnetic field fluctuations in an ion trap, there may exist a dec ...