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Dec 14, 2010 We present a detailed theoretical analysis for the distillation of one copy of a mixed two-mode continuous-variable entangled state using beam splitters and coherent photon-detection techniques, including conventional on-off detectors and …
Dec 20, 2013 Squeezed states of various types of quantum oscillators are important nonclassical resources for quantum physics. We derive how much squeezing is universally distillable from multiple copies of non-Gaussian nonclassical states. We extend the approach to more efficient nonuniversal squeezing distillation, transforming hidden and scattered …
Emulating Quantum Dynamics with Neural Networks via Knowledge Distillation Yu Yao,1 Chao Cao,1 Stephan Haas,1 Mahak Agarwal,2 Divyam Khanna,2 and Marcin Abram1,3, 1Department of Physics and ...
Feb 22, 2005 We consider a model of quantum computation in which the set of elementary operations is limited to Clifford unitaries, the creation of the state $\\ensuremath{\\mid}0 $, and qubit measurement in the computational basis. In addition, we allow the creation of a one-qubit ancilla in a mixed state $\\ensuremath{\\rho}$, which should be regarded as a parameter of the …
Jan 24, 2015 The quantum simulation is performed by mapping the dynamics of the molecular Hamiltonian to a series of quantum gates (Fig. 1).The first step is to map fermionic operators to spin operators. 6 There are two generic methods of performing this mapping: Jordan–Wigner, which encodes orbital occupation in individual spins at the cost of N-body spin operators to …
Jul 01, 2019 Phys. Rev. A 100, 012102 (2019) - Nonlocality distillation and quantum voids Physical Review A Abstract Via nonlocality distillation, a number of copies of a given nonlocal correlation can be turned into a new correlation displaying a higher degree of nonlocality.
Jul 01, 2020 Nature Reviews Physics - Quantum simulation with ultracold atomic gases is an established platform for investigating complex quantum processes. ... This ‘quantum distillation’ could serve to ...
Jul 08, 2020 Abstract. We experimentally realize a method to produce nonequilibrium Bose-Einstein condensates with condensed fraction exceeding those of equilibrium samples with the same parameters. To do this, we immerse an ultracold Bose gas of 87Rb in a cloud of 39K with substantially higher temperatures, providing a controlled source of dissipation.
Jun 26, 2013 We investigate quantum repeaters in the context of quantum key distribution. We optimize the secret key rate per memory per second with respect to different distillation protocols and distillation strategies. For this purpose, we also derive an analytical expression for the average number of entangled pairs created by the quantum repeater, including classical …
Mar 09, 2022 Dipole-coupled subwavelength quantum emitter arrays respond cooperatively to external light fields as they may host collective delocalized excitations (a form of excitons) with super- or subradiant character. Deeply subwavelength separations typically occur in molecular ensembles, where in addition to photon-electron interactions, electron-vibron couplings and …
Mar 09, 2022 Europium molecular crystals represent a major advance, as they have ultra-narrow linewidths. This translates into long-lived quantum states, which were used to demonstrate the storage of a light ...
Mar 11, 2022 As an illustration, a quantum state distillation has been demonstrated to recover a Bell state from a non-maximally entangled one to that with fidelities higher than 98%.
Mar 16, 2022 The hybrid algorithm uses a classic and quantum computer to calculate ground state energy. This will help researchers develop new materials for different applications, including sustainability goals.
May 09, 2021 Quantum Physics. Title: Optimized Low-Depth Quantum Circuits for Molecular Electronic Structure using a Separable Pair Approximation. Authors: Jakob S. Kottmann, Aln Aspuru-Guzik ... The obtained circuits are well suited as a baseline circuit for emerging quantum hardware and can, in the long term, provide significantly improved initial ...
Membrane distillation (MD) is a promising technology that can potentially compete with the existing MSF/MED and SWRO solutions and could be capable of overcoming the issues previously described [17,19,20].The key benefits of using MD technology include: (1) less stringent operation conditions compared to conventional desalination, including lower vacuum, …
Nov 09, 2009 Abstract. Quantum physics and biology have long been regarded as unrelated disciplines, describing nature at the inanimate microlevel on the one hand and living species on the other hand. Over the past decades the life sciences have succeeded in providing ever more and refined explanations of macroscopic phenomena that were based on an improved ...
Nov 21, 2018 We characterize the operational task of environment-assisted distillation of quantum coherence under different sets of free operations when only a finite supply of copies of a given state is available. We first evaluate the one-shot assisted distillable coherence exactly, and introduce a semidefinite programming bound on it in terms of a smooth entropic quantity. …
Oct 04, 2021 Entanglement distillation reverses this noise, reviving the entanglement and giving the pair of photons a new life via a protocol involving quantum logic operations known as controlled-not (CNOT) gates. Traditionally, this protocol is pretty wasteful: each distillation step sacrifices a good pair of photons, and even worse, there is no fail ...
Oct 18, 2021 Quantum Control for Rydberg State Spectroscopy. Stephen D. Hogan. Department of Physics and Astronomy, University College London, London, United Kingdom. October 18, 2021 • Physics 14, 145. Borrowing from techniques used for the quantum control of chemical reactions, researchers have developed a method to study the Rydberg states of …
Oct 20, 2003 We can make use of the garbage in the distillation process, and make the entanglement waste in quantum communication as small as possible. ... Comments: 15 pages 2 figures: Subjects: Quantum Physics (quant-ph) Journal reference: Journal of Physics B: Atomic, Molecular Optical Physics, volume 36, issue 21, pages 4245 - 4253, 2003: DOI: 10.1088 ...
Presents a unique approach to grasping the concepts of quantum theory with a focus on atoms, clusters, and crystals Quantum theory of atoms and molecules is vitally important in molecular physics, materials science, nanoscience, solid state physics and many related fields. Introductory Quantum Mechanics with MATLAB is designed to be an accessible guide to …
Sep 02, 2020 A molecular approach to quantum computing. In a new theoretical study, Caltech physicists have shown how molecules can, in theory, be used to reduce errors in quantum computing. This strategy ...
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Slide mount without angle scale. Screen, semitransparent, 150x150mm. Cuvette, plastic, W x D x H: 99 x 59 x 42 mm. Slide magzine, plastics. Foil filter, red, in slide frame glasless. Foil filter, green, in slide frame glasless. Foil filter, blue, in slide …
Student set Optics / Atomic physics, TESS advanced Physics. PHYWE Spectrometer 2. XR 4.0 Mobile X-ray Lab. Handbuch Schlerversuche Optik/Atomphysik, Sekundarstufe II, TESS advanced Physik, (in german) Student set Optics / Atomic physics (special edition), TESS advanced Physics. DEMO advanced Physics set Radioactivity.
Subjects: Quantum Physics (quant-ph); Mathematical Physics (math-ph); Functional Analysis (math.FA) [140] arXiv:2202.03339 [ pdf , ps , other ] Title: Shared purity and concurrence of a mixture of ground and low-lying excited states as indicators of quantum phase transitions
The language of atoms and molecules. Different disciplines of physics and chemistry converge into atomic, molecular, and optical (AMO) physics. This admixture of disciplines is, in our view, what makes AMO a fascinating and intriguing field of research. Therefore, if one enjoys studying several fields of physics and chemistry, AMO physics is ...
The minor leverages the unique strengths of the faculties of Molecular Engineering, Physics, and Computer Science to provide students with a foundation to understand and contribute to quantum sciences and technologies. ... The course has a laboratory component that includes characterizing vapor-liquid equilibria in distillation processes ...
This chapter discusses the basic concept of molecular modeling and its applications to polybenzoxazine. Molecular modeling is the science of representing molecular structures numerically and simulating their behavior with the equations of quantum and classical physics. Using computer programs, polymer scientists could directly generate and ...
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