Simulation of mirror inversion of quantum states in an XY spin chain using NMR

We report an experimental quantum simulation of unitary dynamics of an XY spin chain with pre-engineered couplings. Using this simulation, we demonstrate the mirror inversion of quantum states, proposed by Albanese et al. [Phys. Rev. Lett. 93, 230502 (2004)]. The experiment is performed with a 5-qubit dipolar coupled spin system using nuclear magnetic resonance techniques. To perform quantum simulation we make use of the recently proposed unitary operator decomposition algorithm of Ajoy et al. [Phys. Rev. A 85, 030303 (2012)] along with numerical pulse optimization techniques. Further, using mirror inversion, we demonstrate that entangled states can be transferred from one end of the chain to the other end. The simulations are implemented with high experimental fidelity, which implies that these kind of simulations may be possible in larger systems.Comment: 9 pages, 6 figure

Management Of Subclinical Hypothyroidism Through Ayurveda: A Case Study

Hypothyroidism falls within the domain of dhatvagni mandyajanya vyadhi, which is characterized by impaired metabolism at the Dhatu (tissue) level. A sedentary lifestyle combined with high-calorie foods that require little energy expenditure can be the cause of a disrupted metabolism. This case of subclinical hypothyroidism is selected due to its prevalence in the community. A female patient aged 29 years, a nurse by profession presented with chief complaints of fatigue, weight gain, hair loss, irregular menstrual periods, and puffiness of face for four years. She was diagnosed with subclinical hypothyroidism with increased serum thyroid-stimulating hormone levels.  A treatment plan was planned according to the clinical symptoms of the patient. She was treated with ayurvedic internal medications for a period of six months along with udhvartana treatment externally. The combined action of Ayurveda medicines along with udhvartana showed significant relief in the symptoms clinically along with the reduction in the thyroid hormone levels

Monogamy of quantum correlations reveals frustration in a quantum Ising spin system: Experimental demonstration

We report a nuclear magnetic resonance experiment, which simulates the quantum transverse Ising spin system in a triangular configuration and further show that the monogamy of quantum correlations can be used to distinguish between the frustrated and non-frustrated regimes in the ground state of this system. Adiabatic state preparation methods are used to prepare the ground states of the spin system. We employ two different multipartite quantum correlation measures to analyze the experimental ground state of the system in both the frustrated and non-frustrated regimes. In particular, we use multipartite quantum correlation measures generated by monogamy considerations of negativity, a bipartite entanglement measure, and that of quantum discord, an information-theoretic quantum correlation measure. As expected from theoretical predictions, the experimental data confirm that the non-frustrated regime shows higher multipartite quantum correlations compared to the frustrated one.Comment: Title in the published version is "Multipartite quantum correlations reveal frustration in a quantum Ising spin system", 7 pages, 4 figure

Toward quantum information processing by nuclear magnetic resonance: pseudopure states and logical operations using selective pulses on an oriented spin <SUP>3/2</SUP> nucleus

Nuclear magnetic resonance spectroscopy has demonstrated significant experimental progress toward the development of quantum computations. The developments so far have taken place mainly through the use of spin ½ nuclei. In this paper we describe the use of a spin math nucleus, oriented in a liquid crystal matrix for the creation of pseudopure states and the implementation of a complete set of two-qubit reversible logic gates using single-quantum transition-selective pulses, extending the range of practice of NMR toward quantum computation

Ensemble quantum-information processing by NMR: implementation of gates and the creation of pseudopure states using dipolar coupled spins as qubits

Quantum-information processing is carried out using dipolar coupled spins and high-resolution nuclear magnetic resonance (NMR). The systems chosen are the dipolar coupled methyl protons of CH3CN partially oriented in a liquid crystalline matrix yielding a two-qubit system and dipolar coupled 13C and methyl protons of 13CH3CN also partially oriented in the liquid crystalline matrix, yielding a three-qubit system. The dipolar coupled protons of oriented CH3 group are chemically and magnetically identical and their eigenstates can be divided into a set of quartet states (symmetric A) and a pair of doublet (E) states. We describe here a method for selectively retaining the magnetization of the symmetric states, yielding two and three qubit systems. We create pseudopure states using single-quantum-transition selective pulses and implement two- and three-qubit gates using one- and two-dimensional NMR

Advanced Integrated Fire Halt Robot

This paper develop a fire halt robot using RF technology to control the fire accidents. This robot is designed with water tanker, a pump, elide fire ball and carbon dioxide cylinder which are controlled by wireless communication. An 8051 series of AT89S52 microcontroller is used to design this robot. In this model Transmitter pass the commands to the Receiver using buttons to control the movement of the robot as per the required application. By using three motors at receiver side and are interfaced to the microcontroller for the movement of the robot and to position the arm of the robot. A motor driver IC is interfaced to control the fire extinguishing devices

(5,7-Dimethyl-2-oxo-2H-chromen-4-yl)methyl diethyl­dithio­carbamate

In the title compound, C17H21NO2S2, the coumarin ring system is nearly planar, with a maximum deviation of 0.080 (2) Å from the mean plane. An intra­molecular C—H⋯S hydrogen bond occurs. The crystal structure features C—H⋯S hydrogen bonds and weak π–π inter­actions with a centroid–centroid distance of 3.679 (1) Å

Understanding of Nityaga Kaala from Geographical perspective in India

Philosophies are the foundation for any science, the primary inquest for any science actually starts from philosophy. Whatever scientific theories have been laid today are the transformed versions of philosophy only, Ayurveda being a philosophical science has proven its relevance till date, because of its thumping philosophical background. The philosophy of Shadpadartha is the common root for Indian philosophies and Ayurveda, Dravya or substance/matter is considered to be the foremost Padartha by Vaisheshika philosophers, though Ayurveda has placed it after Samanya, Vishesha and Guna, it has given utmost importance to it because of its applicability and supremacy in Chikitsa. Charaka Samhita has emphasized the importance of the Karana Dravyas for the homeostasis of body tissue and thus maintaining good state of health, the Nine Karana Dravyas viz, Pancha Mahabhuta, Atma, Manas, Kaala and Disha/ Dik or Desha are the materialistic causes for the creation and health