Optical gain in silicon nanocrystals
... intense laser beam (pump) at 390 nm excites the sample in order to reach the population inversion needed for ampli®cation, while a weak probe signal at ,800 nm passes through the active layer of thickness d. In the presence (absence) of the pump beam the probe beam is ampli®ed (absorbed). In Fig. 5 ...
... intense laser beam (pump) at 390 nm excites the sample in order to reach the population inversion needed for ampli®cation, while a weak probe signal at ,800 nm passes through the active layer of thickness d. In the presence (absence) of the pump beam the probe beam is ampli®ed (absorbed). In Fig. 5 ...
Quantum computation and quantum information
... The quantum-mechanical computation of one molecule of methane requires 1042 grid points. Assuming that at each point we have to perform only 10 elementary operations, and the computation is performed at the extremely low temperature T=310-3 K, we would still have to use all the energy produced on ...
... The quantum-mechanical computation of one molecule of methane requires 1042 grid points. Assuming that at each point we have to perform only 10 elementary operations, and the computation is performed at the extremely low temperature T=310-3 K, we would still have to use all the energy produced on ...
AntalyaQuantumComputingTutorial
... one session only and then discarded. Thus, there exists the need for reliable and effective methods for the distribution of the encryption keys. The problem rests on the physical difficulty to detect the presence of an intruder when communicating through a classical communication channel. To date, s ...
... one session only and then discarded. Thus, there exists the need for reliable and effective methods for the distribution of the encryption keys. The problem rests on the physical difficulty to detect the presence of an intruder when communicating through a classical communication channel. To date, s ...
Quantum computation and cryptography: an overview
... up to the limit of being distinguishable by him. In this ‘‘amplification’’ or ‘‘measurement’’ process, the quantum superposition (2) is ‘‘destroyed’’ and only one of the alternatives (e.g., j0i or j1i) survives the experience. This is the (standard but not free of controversy) so-called wave-functio ...
... up to the limit of being distinguishable by him. In this ‘‘amplification’’ or ‘‘measurement’’ process, the quantum superposition (2) is ‘‘destroyed’’ and only one of the alternatives (e.g., j0i or j1i) survives the experience. This is the (standard but not free of controversy) so-called wave-functio ...
Metaphors for Abstract Concepts: Visual Art and Quantum Mechanics
... The final installation comprises the video projected in large format (figure 1) and the tiles, partially stacked in the frame with some also lying on the floor (figure 3). If the metaphor is limited in scope to invoking concepts with literal equivalence in our physical world, then the interlocking ‘ ...
... The final installation comprises the video projected in large format (figure 1) and the tiles, partially stacked in the frame with some also lying on the floor (figure 3). If the metaphor is limited in scope to invoking concepts with literal equivalence in our physical world, then the interlocking ‘ ...
- Philsci
... Spontaneous collapse theories of quantum mechanics (such as the GRW theory of Ghirardi, Rimini, and Weber (1986)) have great philosophical interest. They provide a possible way of solving the measurement problem by changing the dynamics of the theory, and they make wave function collapse philosophic ...
... Spontaneous collapse theories of quantum mechanics (such as the GRW theory of Ghirardi, Rimini, and Weber (1986)) have great philosophical interest. They provide a possible way of solving the measurement problem by changing the dynamics of the theory, and they make wave function collapse philosophic ...
Laser system for the Rydberg excitation of Strontium ions
... Figure 1.5: Schematic H-CZ CNOT gate, realized with neutral atoms [12]. Using the Rydberg interaction for two-ion gates has several advantages: As we have seen above, the strong long-range interactions allow dynamical processes (such as quantum gates) to run on the nanosecond or low-microsecond time ...
... Figure 1.5: Schematic H-CZ CNOT gate, realized with neutral atoms [12]. Using the Rydberg interaction for two-ion gates has several advantages: As we have seen above, the strong long-range interactions allow dynamical processes (such as quantum gates) to run on the nanosecond or low-microsecond time ...
Theoretical Investigations Regarding Single Molecules
... In addition to the neoclassical valence bond theory, this work contains three projects related to molecular electronic quantum transport. Here we will present a quick technical overview of the topics, and reserve the general introduction to the corresponding chapters. Chapter 4 considers the investi ...
... In addition to the neoclassical valence bond theory, this work contains three projects related to molecular electronic quantum transport. Here we will present a quick technical overview of the topics, and reserve the general introduction to the corresponding chapters. Chapter 4 considers the investi ...
An N-atom Collective State Atomic Interferometer with Ultra
... in the z-direction by n~kTd /N m by the end of the first dark zone, making an angle θn = tan−1 (n~k/N mv) with the x-axis. We label the path taken by this state as Path-n. The subsequent π-pulse causes |En i to evolve to |EN −n i. This results in the deflection of the trajectory of the states so tha ...
... in the z-direction by n~kTd /N m by the end of the first dark zone, making an angle θn = tan−1 (n~k/N mv) with the x-axis. We label the path taken by this state as Path-n. The subsequent π-pulse causes |En i to evolve to |EN −n i. This results in the deflection of the trajectory of the states so tha ...
Gravitational Holographic Teleportation
... inertial wavelengths are respectively λ g = h M g c and λi = h M i c . In Quantum Mechanics, particles of matter and quanta of radiation are described by means of wave packet (DeBroglie’s waves) with average wavelength λi . Therefore, we can say that during a time interval Δt = λi c , a quantum of e ...
... inertial wavelengths are respectively λ g = h M g c and λi = h M i c . In Quantum Mechanics, particles of matter and quanta of radiation are described by means of wave packet (DeBroglie’s waves) with average wavelength λi . Therefore, we can say that during a time interval Δt = λi c , a quantum of e ...
Long distance coupling of a quantum mechanical oscillator to the
... similar level of quantum control over the center-of-mass motion of atomic ensembles has yet to be established. In the present work we will consider the coupling of a nano-mechanical oscillator to the internal states of the atomic ensemble. Coupling to Zeeman or hyperfine ground states with frequencie ...
... similar level of quantum control over the center-of-mass motion of atomic ensembles has yet to be established. In the present work we will consider the coupling of a nano-mechanical oscillator to the internal states of the atomic ensemble. Coupling to Zeeman or hyperfine ground states with frequencie ...
![Research proposal HECATE [Part B2] Section a. State-of-the](http://s1.studyres.com/store/data/007968803_2-f715fb8f615658f4470699bb497c984a-300x300.png)
School of Physics - The University of Sydney
... It is highly recommended that each student of PHYS 2012 purchase the current edition of ‘Computational Physics Quantum Mechanics Notes’. Copies of these notes are available at the University Copy Centre. A booklet of lecture notes (entitled ‘Quantum Physics Lecture Notes’) will also be sold through ...
... It is highly recommended that each student of PHYS 2012 purchase the current edition of ‘Computational Physics Quantum Mechanics Notes’. Copies of these notes are available at the University Copy Centre. A booklet of lecture notes (entitled ‘Quantum Physics Lecture Notes’) will also be sold through ...
surface capture, release and energy loss of fast ions hitting a polar
... Of particular interest for understanding the fundamental interaction of energetic ions with condensed matter was the discovery of the ‘channeling’ phenomenon [3], the deep penetration of fast ions travelling through the solid at glancing angles between two adjacent atomic planes. Channeling has grea ...
... Of particular interest for understanding the fundamental interaction of energetic ions with condensed matter was the discovery of the ‘channeling’ phenomenon [3], the deep penetration of fast ions travelling through the solid at glancing angles between two adjacent atomic planes. Channeling has grea ...
and quantum properties - Hal-SHS
... association of a definite physical quantity to a given system, except for quantities obeying a superselection condition (corresponding to one unique value determination) : a quantum system can only have a probability for a given state, and a given quantity (though numerically valued) is not a proper ...
... association of a definite physical quantity to a given system, except for quantities obeying a superselection condition (corresponding to one unique value determination) : a quantum system can only have a probability for a given state, and a given quantity (though numerically valued) is not a proper ...
The Doppler Effect of Absorption Spectral Lines in Moving
... The Doppler Effect has been a standard technique used by astronomers for decades to measure the radial velocity of astronomic bodies relative to the Earth. Most of the times, if not always, the spectral lines coming from the moving body are absorption (Fraunhofer) dark lines which, according to the ...
... The Doppler Effect has been a standard technique used by astronomers for decades to measure the radial velocity of astronomic bodies relative to the Earth. Most of the times, if not always, the spectral lines coming from the moving body are absorption (Fraunhofer) dark lines which, according to the ...
On the Faithful Interpretation of Pure Wave Mechanics
... superposition of states each of which [. . .] represent[s] the bodies with fairly well defined positions and momenta. Each of these states then propagates approximately according to classical laws, so that the general state can be viewed as a superposition of quasi classical states propagating accor ...
... superposition of states each of which [. . .] represent[s] the bodies with fairly well defined positions and momenta. Each of these states then propagates approximately according to classical laws, so that the general state can be viewed as a superposition of quasi classical states propagating accor ...
manuscript - University of Hertfordshire
... Phase portraits characterize the time evolution of dynamical systems and are widely used in classical mechanics [1]. For the conservative motion of a single particle, moving in one dimension x under the influence of a static smooth potential VðxÞ only, the classical Liouville flow in phase space is ...
... Phase portraits characterize the time evolution of dynamical systems and are widely used in classical mechanics [1]. For the conservative motion of a single particle, moving in one dimension x under the influence of a static smooth potential VðxÞ only, the classical Liouville flow in phase space is ...
