80, 032307 (2009)
... Suppressing decoherence in a quantum system is of great importance for quantum information processing as well as high-precision spectroscopy. The fault-tolerance quantum computation requires the decoherence rate to be below a threshold level 关1兴. Low decoherence is also demanded to store quantum inf ...
... Suppressing decoherence in a quantum system is of great importance for quantum information processing as well as high-precision spectroscopy. The fault-tolerance quantum computation requires the decoherence rate to be below a threshold level 关1兴. Low decoherence is also demanded to store quantum inf ...
Effects of inhomogeneous broadening on reflection spectra of Bragg
... experimental results for both cw and time-resolved spectra.25 In this paper, we demonstrate explicitly the physical meaning of this approximation and the regions of its applicability. The main objective of this paper is to study the effects of the inhomogeneous broadening in Bragg MQW structures wit ...
... experimental results for both cw and time-resolved spectra.25 In this paper, we demonstrate explicitly the physical meaning of this approximation and the regions of its applicability. The main objective of this paper is to study the effects of the inhomogeneous broadening in Bragg MQW structures wit ...
Newsletter 102 - Psi-k
... arrived at Daresbury the key tasks for the Theory Group were to support the synchrotron radiation science programme and to establish the portfolio of collaborative computational projects - the CCPs. Walter worked on both, but CCP9 was always his focus. After long efforts by Balazs Gyorffy and Malcol ...
... arrived at Daresbury the key tasks for the Theory Group were to support the synchrotron radiation science programme and to establish the portfolio of collaborative computational projects - the CCPs. Walter worked on both, but CCP9 was always his focus. After long efforts by Balazs Gyorffy and Malcol ...
Ontic structural realism as a metaphysics of objects - Philsci
... independent of whether the object is alone or accompanied by other objects (see the definition of intrinsic properties by Langton and Lewis 1998). These properties are furthermore such that they distinguish each object from all the other objects that there are in the world. Aristotle sets out such a ...
... independent of whether the object is alone or accompanied by other objects (see the definition of intrinsic properties by Langton and Lewis 1998). These properties are furthermore such that they distinguish each object from all the other objects that there are in the world. Aristotle sets out such a ...
Transport study on two-dimensional electrons with controlled short-range alloy disorder
... of preparing samples of Alx Ga1−x As − Al0.3 Ga0.7 As heterostructures, which allow us to systematically study disorder-related physics in two-dimensional electron systems (2DES). We then review the specific physics problems that we will investigate in later chapters of the thesis using these novel ...
... of preparing samples of Alx Ga1−x As − Al0.3 Ga0.7 As heterostructures, which allow us to systematically study disorder-related physics in two-dimensional electron systems (2DES). We then review the specific physics problems that we will investigate in later chapters of the thesis using these novel ...
Spin and Charge Transport through Driven Quantum Dot Systems
... systems provides information on their energy distribution and gives the opportunity to coherently excite internal transitions. This changed drastically when in 1980 the first measurements of the quantum Hall effect in two dimensional electron gases in semiconductor structures were reported[1]. There ...
... systems provides information on their energy distribution and gives the opportunity to coherently excite internal transitions. This changed drastically when in 1980 the first measurements of the quantum Hall effect in two dimensional electron gases in semiconductor structures were reported[1]. There ...
Quantum criticality at the superconductor-insulator transition
... 2D superconducting granular films have been shown to exhibit signs for Cooper-pairing effects such as the presence of an energy gap, D well into the insulator phase31, and it has been argued that they may be modelled by a bosonic quantum field theory with O(2) symmetry32. Similar findings were found fo ...
... 2D superconducting granular films have been shown to exhibit signs for Cooper-pairing effects such as the presence of an energy gap, D well into the insulator phase31, and it has been argued that they may be modelled by a bosonic quantum field theory with O(2) symmetry32. Similar findings were found fo ...
Electronic quantum optics beyond the integer quantum Hall effect
... attributed to decoherence effects because of the presence of two or more interacting channels [15]. In this paper, we wish to point out that EQO is not limited to the IQH regime. In addition to presenting the basic physics of HOM interferometry for IQH at filling factor ν = 1, we explore two differe ...
... attributed to decoherence effects because of the presence of two or more interacting channels [15]. In this paper, we wish to point out that EQO is not limited to the IQH regime. In addition to presenting the basic physics of HOM interferometry for IQH at filling factor ν = 1, we explore two differe ...
Quantum Nonequilibrium Dynamics: Transport, Entanglement, and Thermalization
... condensed matter systems. Longer length scale means its behavior is more easily detected in the lab. As a result, dimensional analyses already make ultracold atomic gases be favorable candidates for direct investigation of quantum dynamics. One of beautiful features of cold atom systems is the unive ...
... condensed matter systems. Longer length scale means its behavior is more easily detected in the lab. As a result, dimensional analyses already make ultracold atomic gases be favorable candidates for direct investigation of quantum dynamics. One of beautiful features of cold atom systems is the unive ...
Derandomizing the Ahlswede-Winter matrix-valued Chernoff bound using pessimistic estimators, and applications
... Chernoff bounds are extremely useful throughout theoretical computer science. Intuitively, they say that a random sample approximates the average, with a probability of deviation that goes down exponentially with the number of samples. Typically we are concerned with real-valued random variables, bu ...
... Chernoff bounds are extremely useful throughout theoretical computer science. Intuitively, they say that a random sample approximates the average, with a probability of deviation that goes down exponentially with the number of samples. Typically we are concerned with real-valued random variables, bu ...
Measurement of the quantum capacitance of interacting electrons in
... geometric and quantum capacitances are comparable, allowing us to extract both quantitatively. The measured geometrical capacitances are consistent with the classical expression for the capacitance between a gate and a wire. The observed quantum corrections demonstrate a symmetric one-dimensional su ...
... geometric and quantum capacitances are comparable, allowing us to extract both quantitatively. The measured geometrical capacitances are consistent with the classical expression for the capacitance between a gate and a wire. The observed quantum corrections demonstrate a symmetric one-dimensional su ...
Endomorphism Bialgebras of Diagrams and of Non
... construct explicit examples of such and check all the necessary properties. This gets even more complicated if we have to verify that something like a comodule algebra over a bialgebra is given. Bialgebras and comodule algebras, however, arise in a very natural way in non-commutative geometry and in ...
... construct explicit examples of such and check all the necessary properties. This gets even more complicated if we have to verify that something like a comodule algebra over a bialgebra is given. Bialgebras and comodule algebras, however, arise in a very natural way in non-commutative geometry and in ...
Quantum fluctuations in modulated nonlinear oscillators Vittorio Peano and M I Dykman
... consequence, a weakly damped nonlinear oscillator can have coexisting states of forced vibrations, i.e. display bistability, already for small amplitudes of resonant modulation [2]. One of the general physics problems addressed with modulated nonlinear oscillators is fluctuation-induced switching in ...
... consequence, a weakly damped nonlinear oscillator can have coexisting states of forced vibrations, i.e. display bistability, already for small amplitudes of resonant modulation [2]. One of the general physics problems addressed with modulated nonlinear oscillators is fluctuation-induced switching in ...
Possible large-N fixed-points and naturalness for O(N) scalar fields
... must be fine-tuned to cancel the radiative correction. We mentioned mH is O() or mbare H the difficulties with a large mH. A way out is for to be relatively small, but then what replaces λφ 4 beyond ? One may argue that regulators must be sent to limiting values before making physical conclusion ...
... must be fine-tuned to cancel the radiative correction. We mentioned mH is O() or mbare H the difficulties with a large mH. A way out is for to be relatively small, but then what replaces λφ 4 beyond ? One may argue that regulators must be sent to limiting values before making physical conclusion ...
Helium atom - ChaosBook.org
... in this chapter that the concepts of symbolic dynamics, unstable periodic orbits, and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step to ...
... in this chapter that the concepts of symbolic dynamics, unstable periodic orbits, and cycle expansions are essential tools to understand and calculate classical and quantum mechanical properties of nothing less than the helium, a dreaded threebody Coulomb problem. This sounds almost like one step to ...
Lower Diamondoids and Their Derivatives as Molecular Building
... probe systems for the calculations. The results show that the quantum conductance of adamantane and diamantane are very small as predicted from the large HOMO-LUMO gap, while the derivatives of these diamondoids have considerable conductance at certain particular orientations and show interesting el ...
... probe systems for the calculations. The results show that the quantum conductance of adamantane and diamantane are very small as predicted from the large HOMO-LUMO gap, while the derivatives of these diamondoids have considerable conductance at certain particular orientations and show interesting el ...