Abstract: The present invention relates to a composition for preventing or treating liver fibrosis, which includes a Sanguisorba officinalis extract as an active ingredient, and more particularly, to a composition for preventing or treating liver fibrosis, which includes a Sanguisorba officinalis extract or ziyuglycoside. The Sanguisorba officinalis extract or ziyuglycoside of the present invention inhibits liver fibrosis and the expression of a liver fibrosis-related gene, so it may be effectively used in the composition for preventing or treating liver fibrosis.

Abstract: The disclosure describes various techniques to control of small angle Mølmer-Sørensen (MS) gates and to handle asymmetric errors. A technique is described that implements a two-qubit calibration circuit with two MS gates, where a parameter ? represents an amount of entanglement of the MS gate. The calibration circuit is run for several values of ? to measure observed parity signals that are direct measurements of the values of ?. Calibration information is generated that describes the relationship between ? and the parity signals, and such calibration information is then provided to arbitrarily calibrate one or more MS gates in a quantum simulation. Another technique is described for using the calibration information in quantum simulations, including for quantum chemistry simulations.

Abstract: A method for performing an entangling operation between trapped ions in a quantum computer includes selecting an amount of infidelity that is allowed in an entangling operation between two trapped ions in a quantum computer, computing a pulse function of a pulse to be applied to each of the two trapped ions based on gate operation conditions and the selected amount of infidelity, generating the pulse based on the computed pulse function, and applying the generated pulse to each of the two trapped ions to perform the entangling operation between the two trapped ions.

Abstract: A method of performing a computation using an ion trap quantum computer includes computing a detuning frequency function and an amplitude function of a laser pulse to cause entangling interaction between a pair of trapped ions of a plurality of trapped ions, each of the plurality of trapped ions having two frequency-separated states defining a qubit, splining the computed detuning frequency function of the laser pulse, modifying the computed amplitude function of the laser pulse based on the splined detuning frequency function, and applying a modified laser pulse having the splined detuning frequency function and the modified amplitude function to each trapped ion in the pair of trapped ions.

Abstract: The disclosure describes various aspects of techniques for optimal fault-tolerant implementations of controlled-Z? gates and Heisenberg interactions. Improvements in the implementation of the controlled-Z? gate can be made by using a clean ancilla and in-circuit measurement. Various examples are described that depend on whether the implementation is with or without measurement and feedforward. The implementation of the Heisenberg interaction can leverage the improved controlled-Z? gate implementation. These implementations can cut down significantly the implementation costs associated with fault-tolerant quantum computing systems.

Abstract: Provided is a semiconductor device including a ferroelectric layer. The semiconductor device includes a channel layer including an n-type oxide semiconductor layer and a p-type oxide semiconductor layer, a ferroelectric layer disposed on the channel layer, a gate electrode disposed on the ferroelectric layer, and a reduced layer disposed on the channel layer and including an element having greater reducing power than a metal included in the channel layer.

Abstract: A system and method is provided for optimizing an input quantum circuit. An exemplary method includes searching a library of templates to find, by compiling abstract gate operations into a set of hardware-specific operations that manipulate qubit states, a template of quantum circuit gates that performs a predetermined function and that matches a set of quantum circuit gates in the input quantum circuit that performs the predetermined function; and replacing the set of quantum circuit gates in the input quantum circuit with the template of quantum circuit gates when the template of quantum circuit gates has a lower quantum cost than the set of quantum circuit gates based on estimated execution times. Moreover, the method is executed in a pipeline in combination with at least quantum circuit compilation.

Abstract: The disclosure describes various techniques to control of small angle Mølmer-Sørensen (MS) gates and to handle asymmetric errors. A technique is described for handling asymmetric errors in quantum information processing (QIP) systems. An exemplary method includes implementing a quantum circuit in the QIP system that has first and second qubit lines, with a first qubit state having a greater measurement error than a second qubit state; swapping the roles of the first and second qubit states at a quantum circuit level in response to at least one of the first qubit line and the second qubit line being expected to be at the first qubit state at a measurement; and enabling a quantum simulation using the quantum circuit with the first and second qubit states reassigned in at least one of the first qubit line and the second qubit line after the swapping of the respective roles.

Abstract: Aspects of the present disclosure describe a method including predicting a first set of ansatz terms and a first plurality of amplitudes associated with the first set of ansatz terms; minimizing energy of the system based on the first set of ansatz terms and the first plurality of amplitudes; computing perturbative corrections using one or more ansatz wavefunctions; determining whether energy of the system converges; and predicting, in response to determining that the energy of the system does not converge, a second set of ansatz terms and a second plurality of amplitudes associated with the second set of ansatz terms.

Abstract: Aspects of the present disclosure relate generally to systems and methods for use in the implementation and/or operation of quantum information processing (QIP) systems, and more particularly, to the use of computational symmetries for error mitigation in quantum computations in QIP systems.

Abstract: A system and method is provided for optimizing an input quantum circuit. An exemplary method includes searching a library of templates to find, by compiling abstract gate operations into a set of hardware-specific operations that manipulate qubit states, a template of quantum circuit gates that performs a predetermined function and that matches a set of quantum circuit gates in the input quantum circuit that performs the predetermined function; and replacing the set of quantum circuit gates in the input quantum circuit with the template of quantum circuit gates when the template of quantum circuit gates has a lower quantum cost than the set of quantum circuit gates based on estimated execution times. Moreover, the method is executed in a pipeline in combination with at least quantum circuit compilation.

Abstract: The disclosure describes various techniques to control of small angle Mølmer-Sørensen (MS) gates and to handle asymmetric errors. A technique is described for handling asymmetric errors in quantum information processing (QIP) systems. An exemplary method includes implementing a quantum circuit in the QIP system that has first and second qubit lines, with a first qubit state having a greater measurement error than a second qubit state; swapping the roles of the first and second qubit states at a quantum circuit level in response to at least one of the first qubit line and the second qubit line being expected to be at the first qubit state at a measurement; and enabling a quantum simulation using the quantum circuit with the first and second qubit states reassigned in at least one of the first qubit line and the second qubit line after the swapping of the respective roles.

Abstract: A method of determining a pattern in a sequence of bits using a quantum computing system includes setting a first register of a quantum processor in a superposition of a plurality of string index states, encoding a bit string in a second register of the quantum processor, encoding a bit pattern in a third register of the quantum processor, circularly shifting qubits of the second register conditioned on the first register, amplifying an amplitude of a state combined with the first register in which the circularly shifted qubits of the second register matches qubits of the third register, measuring an amplitude of the first register and determining a string index state of the plurality of string index states associated with the amplified state, and outputting, by use of a classical computer, a string index associated with the first register in the measured state.

Abstract: A method of performing a computational process using a quantum computer includes measuring a coupling strength of each trapped ion in an ion chain and each motional mode of the ion chain, wherein the trapped ions comprises first trapped ions that are addressable by laser beams, and second trapped ions that are not addressable by laser beams, computing a first map of the first trapped ions to the motional modes, wherein the motional mode comprises first motional modes that are allocated by the first map and second motional modes that are unallocated by the first map, measuring frequencies of the first motional modes, computing a second map of the first trapped ions to the second motional modes, measuring frequencies of the second motional modes, and outputting the measured frequencies of the motional modes, to be used for computing a pulse to be applied to the ion chain.

Abstract: A method of using an ion trap quantum computer includes performing a first measurement of bright-state population of each ion in an ion chain, the each ion coupled to one of motional modes of the ion chain, while varying laser coupling frequency, computing mode frequency of the one of the motional mode based on the measured bright-state population in the first measurement, performing a second measurement of bright-state population of each ion in the ion chain, and computing coupling strength of the each ion and the one of the motional mode by fitting the bright-state population of the each ion measured in the second measurement to a value of the bright-state population computed based on the computed mode frequency of the one of the motional modes and non-zero temperature effect of the motional modes.

Abstract: A method for performing at least a portion of a computational process includes computing a pulse function of a pulse to be applied to a first pair of trapped ions in a first ion chain based on a phase-space condition, wherein the phase-space condition is derived using equi-spaced synthetic frequencies in a frequency interval that includes a range set by a highest and a lowest motional mode frequency of the first ion chain, generating the pulse based on the computed pulse function, and applying the generated pulse to each of a second pair of trapped ions in a second ion chain to perform an entangling gate operation between the second pair of trapped ions in the second ion chain.

Abstract: A method of determining a pattern in a sequence of bits using a quantum computing system includes setting a first register of a quantum processor in a superposition of a plurality of string index states, encoding a bit string in a second register of the quantum processor, encoding a bit pattern in a third register of the quantum processor, circularly shifting qubits of the second register conditioned on the first register, amplifying an amplitude of a state combined with the first register in which the circularly shifted qubits of the second register matches qubits of the third register, measuring an amplitude of the first register and determining a string index state of the plurality of string index states associated with the amplified state, and outputting, by use of a classical computer, a string index associated with the first register in the measured state.

Abstract: The disclosure describes various aspects of techniques for optimal fault-tolerant implementations of controlled-Za gates and Heisenberg interactions. Improvements in the implementation of the controlled-Za gate can be made by using a clean ancilla and in-circuit measurement. Various examples are described that depend on whether the implementation is with or without measurement and feedforward. The implementation of the Heisenberg interaction can leverage the improved controlled-Za gate implementation. These implementations can cut down significantly the implementation costs associated with fault-tolerant quantum computing systems.

Abstract: A method of performing a quantum computation process includes computing first Fourier coefficients of a first pulse function of a first control pulse and second Fourier coefficients of a second pulse function of a second control pulse based on a condition for closure of phase space trajectories and a condition for stabilization of phase-space closure, and computing a first linear combination of the computed first Fourier coefficients and a second linear combination of the computed second Fourier coefficients based on a condition for non-zero degree of entanglement, a condition for stabilization of the degree of entanglement, and a condition for minimized power, applying the first control pulse having the computed first pulse function to a first trapped ion of a pair of trapped ions, and the second control pulse having the computed second pulse function to a second trapped ion of a pair of trapped ions.

Abstract: Technologies are described herein to implement an optimizer that receives portions of a quantum circuit; identifies, from within the received portions of the quantum circuit, a pattern of quantum gates to perform a quantum function; searches a library for a replacement pattern of quantum gates, which is also to perform the quantum function, for the identified pattern of quantum gates; determines that a quantum cost of the replacement pattern of quantum gates is lower than a quantum cost of the identified pattern of quantum gates; and replaces the identified pattern of quantum gates with the replacement pattern of quantum gates.