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We demonstrate the preparation and coherent control of the angular momentum state of a two-ion crystal. The ions are prepared with an average angular momentum of 7850ℏ freely rotating at 100 kHz in a circularly symmetric potential, allowing us to address rotational sidebands. By coherently exciting these motional sidebands, we create superpositions of states separated by up to four angular momentum quanta. Ramsey experiments show the expected dephasing of the superposition which is dependent on the number of quanta separating the states. These results demonstrate coherent control of a collective motional state described as a quantum rotor in trapped ions. Moreover, our Letter offers an expansion of the utility of trapped ions for quantum simulation, interferometry, and sensing.
This article was published in the following journal.
Name: Physical review letters
Recently, increasing efforts are being made to control thermal transport via coherent phonons in periodic phononic structures; however, the direct observation of coherent phonon transport is experimen...
The purpose of the present research was to identify and examine materials demonstrating a previously undiscovered property of coherent poly propagation (CPP). The materials were amorphous silicates as...
We demonstrate that in partially ionized plasmas, Coulomb scattering can be significantly perturbed by electron collisions with neutral gas particles, and that this effect can be incorporated in the C...
Electrons in two-dimensional layered crystals gain a discrete positional degree of freedom over layers. We propose the two-dimensional transition metal dichalcogenide homostructure with polar symmetry...
A layered metal-organic framework (MOF) comprising extra-large nanographene sheets, , was successfully synthesized using a dicarboxylic acid derivative of hexa--hexabenzocoronene (LH), and its structu...
A study to establish the efficacy of a new type of mechanical rotational chair in treating BPPV. In addition, comparison of three types of treatment maneuvers using the mechanical rotation...
The main objective of the study is to assess the "FreeDom" innovative strategy (FreeO2 at Domicile) to reduce hospitalization duration in patients with COPD exacerbation. This strategy ass...
This is a Phase 3, randomized, double-blind, controlled, parallel-group, multicenter clinical trial with co-crystal E-58425 compared to tramadol, to celecoxib, and to placebo. The primary ...
To evaluate the rotational stability difference among different intraocular lens. The rotational stability is evaluated by measurement of rotation of the IOL after surgery.
Depression is an important mental health concern in college students. This study will recruit students who test positive for moderate to severe depression on the Beck Depression Inventory ...
A central nervous system stimulant and sympathomimetic with actions and uses similar to DEXTROAMPHETAMINE. The smokable form is a drug of abuse and is referred to as crank, crystal, crystal meth, ice, and speed.
The total area or space visible in a person's peripheral vision with the eye looking straightforward. The average extent is about 65 degree upward, 75 degree downward, 60 degree inward, and 95 degree outward. Visual fields can be measured by PERIMETRY.
The use of a quartz crystal microbalance for measuring weights and forces in the micro- to nanogram range. It is used to study the chemical and mechanical properties of thin layers, such as polymer coatings and lipid membranes; and interactions between molecues.
Educational programs for pharmacists who have a bachelor's degree or a Doctor of Pharmacy degree entering a specific field of pharmacy. They may lead to an advanced degree.
Downward displacement of the UTERUS. It is classified in various degrees: in the first degree the UTERINE CERVIX is within the vaginal orifice; in the second degree the cervix is outside the orifice; in the third degree the entire uterus is outside the orifice.